Wellspring of Spring

Wellspring of Spring enters the battlefield
tapped. When it enters the battlefield,
sacrifice it unless you pay 3 life.
Whenever you would gain life, you gain half that
much psylian life instead, rounded down.
{t}: You gain 1 psylian life. (Pay 2 psylian life:
Add one mana of any color. Psylian life counts
towards your life total but is tracked separately. You
lose non-psylian life before losing psylian life.)