Lacunae, Unity's Beacon

Flying, Menace, Hexproof, Scry 2

As an additional cost to cast this spell,
if you cast it from you hand, sacrifice a Pony.

{u/b}, {t}, pay X life:
Put X +1/+1 counters on each Unity Alicorn
creature you control, each player draws X cards.
{u}, {t}: draw two cards.