Itachi's Mangekyou Sharingan

Cast only if you control a card with Itachi in its name.
Amaterasu - {3}: Put a -1/-1 counter on target crea-
ture. That creatures gains: "At the beginning of each
player's upkeep put a -1/-1 on this creature." If you've
used this abilitie more than 3 times this turn put a -0/-2
counter on enchanted Itachi.
Tsukuyomi - {5}{t}: Tap target creature. Then deal 6
damage to that creature. Target creature gains shroud
until your next turn.