Zain, Fallen Aven

As long as Zain, Fallen Aven is in play creatures
you control lose and cannot gain flying.
{s}{p/g}: Each player creates a 1/1 blue fish token
with "This creature can't be blocked".
Zain, Fallen Aven gains ingest 2 until end of turn.
{p/g}{p/g}: Each player creates a Food token.
Zain, Fallen Aven is unblockable until end of
turn.
{u/b}{3}: Each player gains 2 life, and creates 2 clue
tokens. Destroy all creatures with flying.