Can I target the creature with Backup itself when the ability triggers?

Yes. If you target the Backup creature itself, it receives the +1/+1 counters as normal. However, it won't gain any abilities from itself — the ability-sharing only happens when the target is a *different* creature.

Which abilities does Backup share with the target creature?

Only the abilities physically printed *after* the Backup keyword on the card. Abilities printed before Backup — like flash or cycling — are never shared. Any abilities the Backup creature gained from other effects are also not shared, since they aren't printed on the card.

If I kill the Backup creature in response to the trigger, does the target still get the abilities?

Yes. The granted abilities are locked in when the trigger is put on the stack, not when it resolves. Destroying the Backup creature after that point doesn't stop the trigger from resolving and granting the abilities.

If someone gives the Backup creature a new ability in response to the trigger, does the target get that ability too?

No. Only abilities *printed* on the card are shared through Backup. Abilities granted by other spells or effects after the trigger has gone on the stack are not printed on the card, so they won't be passed to the target.

Do the +1/+1 counters from Backup go away at end of turn?

No — the counters are permanent. Only the borrowed abilities expire at end of turn. This is one of the key asymmetries of Backup: the size boost lasts forever, but the ability-sharing is temporary.

What format is Backup legal in?

Backup was introduced in March of the Machine (2023). Cards with Backup are legal in any format that includes that set or later — including Modern, Pioneer, Commander, and Legacy. Standard legality depends on which sets are currently in rotation; check the current format rules for up-to-date information.

Backup: MTG Mechanic Explained

Some mechanics are about raw power. Backup is about solidarity. Introduced in March of the Machine (2023), Backup captures the flavour of the set perfectly: creatures from across the Multiverse standing together, passing skills between allies in the heat of battle. Mechanically, it rewards you for thinking about your whole board rather than just the creature you're casting.

What is Backup?

Backup is a triggered keyword ability that appears on creatures. When a creature with Backup enters the battlefield, you choose a target creature and put a number of +1/+1 counters on it equal to the Backup number. If the creature you choose is any creature other than the one with Backup, that creature also gains the abilities printed below the Backup line - until end of turn.

In other words, Backup does two things at once: it makes a creature permanently bigger with counters, and it temporarily lends another creature a set of abilities. You can also target the Backup creature itself to just take the counters, though you won't get the ability-sharing in that case.

Lore aside: The mechanic was designed to represent the defenders of each plane fighting back against New Phyrexia's invasion of the Multiverse. The flavour of one fighter boosting and training another fits that collaborative, desperate resistance perfectly.

How Backup works - the rules

Backup follows a clean template: "Backup N" means:

"When this creature enters, put N +1/+1 counters on target creature. If that's another creature, it also gains the non-backup abilities of this creature printed below this one until end of turn." (CR 702.165a)

A few things worth unpacking from that definition.

Only abilities printed below the Backup line are shared

This is the most important rule, and the most commonly misunderstood. The abilities a creature with Backup grants are only the ones physically printed after the Backup keyword on the card. Abilities printed before Backup - like flash or cycling - are not granted to the target.

This is intentional. Some Backup creatures have abilities that only make sense while the card is in hand or being cast, not on the battlefield. Granting flash or cycling to another creature would usually be irrelevant, but there are specific interactions (with cards like Abandoned Sarcophagus) where it could cause unexpected effects. The "printed below" clause is a safety valve, not just flavour.

The abilities are locked in when Backup triggers

The granted abilities are determined the moment the Backup ability is put on the stack - not when it resolves. If the Backup creature somehow loses one of those abilities in response, the target still gains whatever was locked in at trigger time. (CR 702.165d)

Conversely, if someone grants the Backup creature a new ability in response to the trigger, that newly gained ability is not printed on the card and won't be shared. Only printed abilities travel. (CR 702.165c)

Copies maintain the ability order

If a permanent enters as a copy of a card with Backup, or a token is created that copies such a card, the order of abilities on it is preserved. This matters because the "printed below" rule depends on order. (CR 702.165b)

Targeting yourself

You're allowed to target the Backup creature itself. When you do, it gets the +1/+1 counters - but it won't gain abilities from itself, because the ability-sharing only triggers when the target is another creature. Sometimes taking the counters on your own creature is the right play. Don't overlook it.

Quick rules reference

| Situation | Result | |---|---| | Target is another creature | Counters + abilities printed below Backup until end of turn | | Target is the Backup creature itself | Counters only, no ability-sharing | | Backup creature loses abilities after trigger | Target still gains what was locked in at trigger time | | Backup creature gains abilities after trigger | Those gained abilities are not shared | | Ability printed before Backup | Not granted to the target |

Strategy

The counters are the floor, the abilities are the ceiling

A useful mental model: think of the +1/+1 counters as the guaranteed value and the ability-sharing as a bonus you're building around. Even if you can't immediately exploit the borrowed abilities, you're still permanently growing a creature on your board. That floor makes Backup creatures worth evaluating even in conservative, creature-heavy strategies.

The ceiling, though, is where things get interesting.

Timing and targets matter a lot

Backup rewards you for having the right creature in play when the Backup creature arrives. Before you cast a Backup creature, take stock of your board. Which creature most benefits from the abilities being offered? A creature that's about to attack is a great candidate for borrowed trample or first strike. A defensive creature might want to receive lifelink or reach.

The counters are permanent. The abilities are not. This asymmetry is key. In most cases you want to put the counters on the creature that benefits most from a long-term size increase, while the borrowed abilities serve the immediate turn. Sometimes those are the same creature. Sometimes they're not - and noticing that tension is part of what makes Backup interesting to play with.

Building around Backup

Backup creatures naturally pair well with:

Creatures with enters-the-battlefield triggers that put counters elsewhere - every Backup trigger is a mini-pump spell that happens for free.
+1/+1 counter synergies - Backup creatures become part of any counter-matters strategy almost automatically.
Blink and bounce effects - returning a Backup creature to hand and replaying it lets you trigger Backup again, spreading counters and abilities a second time.
Combat-focused decks - the temporary ability-sharing is strongest when you have a creature attacking in the same turn the Backup creature enters.

Playing against Backup

The ability-sharing lasts only until end of turn, which gives you a natural out: if you can survive the immediate combat step, the temporary abilities vanish. Removal that kills the Backup creature in response to the trigger still lets the trigger resolve (since the abilities were locked in at trigger time), so don't assume killing the Backup creature stops the ability-sharing. You'd need to either counter the trigger itself or kill the target creature before the trigger resolves.

Notable cards

Cragsmasher Yeti

Cragsmasher Yeti ({4}{R}{R}) is the clearest illustration of how Backup reads in practice. It has Backup 2, and the ability printed below is trample. When it enters, you put two +1/+1 counters on any creature - permanently growing your board - and if it's another creature, that creature gains trample until end of turn. The Yeti also has Mountaincycling, which is printed before Backup and therefore is not shared with the target. It's a straightforward example of the mechanic doing exactly what it promises.

History

Backup debuted in March of the Machine (released April 2023), a set built around the Phyrexian invasion of the Multiverse. The mechanic was originally called "Boost" during design and was created by Ari Nieh.

The thematic fit is unusually tight even by Magic's standards. Every Backup trigger is one creature passing skills to another - a trained fighter helping a companion grow stronger, a veteran lending their expertise to an ally in a desperate war. For a set about planes coming together to survive an existential threat, it's a mechanic that earns its flavour text.

The "printed below" templating choice also reflects a lesson from Magic's design history. Ability-granting effects have historically caused confusion when they touch self-referential text or abilities that only make sense in certain zones. By controlling which abilities travel through the narrow lens of card layout, the design team avoided a whole category of edge cases - while still enabling genuinely interesting decisions about what a Backup creature can offer its allies.