Diver's Despair

Sinking Deeper — At the beginning of each
player's end step, if that player cast less than two spells this turn, that player discards a card or sacrifices a creature.
Rising Too Quickly — At the beginning of each
player's end step, if that player cast three or more
spells this turn, they lose life equal to 3 times the
number of spells they cast this turn.
"The sea, once it casts it's spell, holds one in it's net of wonder forever."