Loobertcha, of Curious Waters

Islandwalk

Whenever Loobertcha attacks, put a flood counter
on target land defending player controls. That land
is an Island in addition to its other types for as long
as it has a flood counter on it.

Whenever a land with a flood counter becomes tapped, it's controller may have you surviel 2. If
they don't, fateseal 2. This ability triggers only once each turn.