Navia, Lady of Golden Guns

Reach, Vigilance, Bulwark - (If Navia blocked a creature during an opponents combat phase, it gets
+X/+X and First strike during combat on your
next turn. Where X is that creatures power.)

Navia gains indestructible as long as it is not your
turn.
Whenever a creature an opponent controls dies, put
a crystal counter on Navia.
Remove 3 Crystal counters from navia, deal 7
damage to any target.