Drake Familiar

Flying
When Drake Familiar enters, sacrifice it unless you return an enchantment to its owner's hand.

Riptide Chimera

Flying
At the beginning of your upkeep, return an enchantment you control to its owner's hand.

At the beginning of each player's upkeep, that player may pay 2 life. If they don't, they return a permanent they control to its owner's hand.

At the beginning of each player's upkeep, that player returns a permanent they control to its owner's hand unless they pay 2 life.

As an additional cost to cast this spell, return a permanent you control to its owner's hand.
Counter target spell.

Floodtide Serpent can't attack unless you return an enchantment you control to its owner's hand. (This cost is paid as attackers are declared.)

Flying
At the beginning of your upkeep, return up to one other target enchantment you control to its owner's hand.

At the beginning of your upkeep, return a permanent you control to its owner's hand.