Pelagic Shaman

When Pelagic Shaman enters the battlefield, gain 2 life for each fish you control.
Position 3 or 4 — {u}{b}, {t}: Fish creatures you control get +1/+0. (If in position 3 or 4 on upkeep, gain this effect. You can change positions only once per turn on main phase.)
"Behold, the abyss is made manifest!"
— the Ancestor