Myrista, Lure of the Dark Sea

Deathtouch, lifelink
Whenever one or more cards enter your graveyard from anywhere, any opponent
may discard that many cards. If they dont, create that many 1/1 black Fish creature
tokens with deathtouch.
Discard a creature card: Other creatures you control with deathtouch get +1/+1 until end
of turn.