Aspidochelone of the Land

Whenever you cast this spell or another turtle spell,
create a 1/1 green turtle creature token with "When
this creature enters the battlefield, put a +1/+1
counter on target creature you control."
{t}: Exile a turtle creature you control, create a
1/1 green turtle creature token with "When this
creature enters the battlefield, put a +1/+1 counter
on target creature you control."