Horseshoe Crab

Imaginary Pet

At the beginning of your upkeep, if you have a card in hand, return this creature to its owner's hand.

Launch

Enchant creature
Enchanted creature has flying.
When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.

Lilting Refrain

At the beginning of your upkeep, you may put a verse counter on this enchantment.
Sacrifice this enchantment: Counter target spell unless its controller pays {X}, where X is the number of verse counters on this enchantment.

Lingering Mirage

Enchant land
Enchanted land is an Island.
Cycling {2} ({2}, Discard this card: Draw a card.)

Morphling

{U}: Untap this creature.
{U}: This creature gains flying until end of turn.
{U}: This creature gains shroud until end of turn. (It can't be the target of spells or abilities.)
{1}: This creature gets +1/-1 until end of turn.
{1}: This creature gets -1/+1 until end of turn.

Pendrell Drake

Flying
Cycling {2} ({2}, Discard this card: Draw a card.)

Pendrell Flux

Enchant creature
Enchanted creature has "At the beginning of your upkeep, sacrifice this creature unless you pay its mana cost."

Peregrine Drake

Flying
When this creature enters, untap up to five lands.

Power Sink

Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.

Defensive Formation

Rather than the attacking player, you assign the combat damage of each creature attacking you. You can divide that creature's combat damage as you choose among any of the creatures blocking it.

Power Taint

Enchant enchantment
At the beginning of the upkeep of enchanted enchantment's controller, that player loses 2 life unless they pay {2}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Recantation

At the beginning of your upkeep, you may put a verse counter on this enchantment.
{U}, Sacrifice this enchantment: Return up to X target permanents to their owners' hands, where X is the number of verse counters on this enchantment.

Rescind

Return target permanent to its owner's hand.
Cycling {2} ({2}, Discard this card: Draw a card.)

Rewind

Counter target spell. Untap up to four lands.

Sandbar Merfolk

Cycling {2} ({2}, Discard this card: Draw a card.)

Urza's Saga