Spider Manifestation

Reach
{T}: Add {R} or {G}.
Whenever you cast a spell with mana value 4 or greater, untap this creature.

Llanowar Elves

Marwyn's Kindred

Reclamation Sage

When this creature enters, you may destroy target artifact or enchantment.

Damage Control Crew

When this creature enters, choose one —
• Repair — Return target card with mana value 4 or greater from your graveyard to your hand.
• Impound — Exile target artifact or enchantment.

Blooming Marsh

This land enters tapped unless you control two or fewer other lands.
{T}: Add {B} or {G}.

Forest

Gilt-Leaf Alchemist

Multiversal Passage

As this land enters, choose a basic land type. Then you may pay 2 life. If you don't, it enters tapped.
This land is the chosen type.

Swamp

Duress

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

Maelstrom Pulse

Destroy target nonland permanent and all other permanents with the same name as that permanent.

Black Cat, Cunning Thief

When Black Cat enters, look at the top nine cards of target opponent's library, exile two of them face down, then put the rest on the bottom of their library in a random order. You may play the exiled cards for as long as they remain exiled. Mana of any type can be spent to cast spells this way.

Manasources	Probability
1	100.00%
2	99.87%
3	97.93%
4	86.60%
5	57.15%
6	21.82%
7	3.31%

Color Pip	Probability
	98.14%
	94.38%
	0.00%
	0.00%
	0.00%
	0.00%

Golgari Ouroboroid

Creatures (8)

Lands (16)

Sideboard (6)

Probability of drawing any mana sources in your first 7 cards

Probability of drawing a mana source of a specific color pip in your first 7 cards

Mana Cost Distribution

Mana Density