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Aven Augur
{3}{U}
Creature -- Bird Wizard
2/2
Flying
Sacrifice ~this~: Return up to two target creatures to their owners' hands. Activate only during your upkeep.

Captivating Gyre
{4}{U}{U}
Sorcery
Return up to three target creatures to their owners' hands.

Floodwaters
{4}{U}{U}
Sorcery
Return up to two target creatures to their owners' hands.
Cycling {2} ({2}, Discard ~this~: Draw a card.)

Into the Void
{3}{U}
Sorcery
Return up to two target creatures to their owners' hands.

Mu Yanling, Celestial Wind
{4}{U}{U}
Legendary Planeswalker -- Yanling
5
[+1]: Until your next turn, up to one target creature gets -5/-0.
[-3]: Return up to two target creatures to their owners' hands.
[-7]: Creatures you control with flying get +5/+5 until end of turn.

Waterwhirl
{4}{U}{U}
Instant
Return up to two target creatures to their owners' hands.