Maria of the Astral Clocktower

Haste, Menace
As long as you have less than half your starting
life total, other creatures you control have "Pay 3
life: This creature gains your choice of haste or
menace until end of turn."
Pay 3 life, {b/r}, {t}: Maria of the Astral Clocktower
deals 1 damage to target creature. Put a -1/-1
counter on it. If that creature dies this turn, exile
it instead.