Himkeru, Slit of Malos Sanguin

Haste, vigilance, defender
Whenever a player casts a creature spell, you may
{t}, Pay X life: Target player loses X life equal to
that card converted mana cost.
Whenever an opponent(s) casts a instant or
sorcery spell, you may pay {r}{r},{ut}: Copy target
spell and choose a new target.
Sacrifice a permanent: Himkeru loses defender
and gains lifelink until the end of turn.