Marina of Sunken Realm

Eminence — At the beginning of each player's
upkeep, as long as Marina of Sunken Realm is in
the command zone or on the battlefield, you may
gain 1 life for each Fish and Merfolk you control.
Islandwalk
At the beginning of each player's end step, if you gained 3 or more life this turn, create a 3/3 blue
Fish creature token with islandwalk.