Ka Ren Bo, Shadow Stalk Trio

Ninjutsu {u}{b}
Ka Ren Bo is unblockable.
When Ka Ren Bo deals damage to a player, destroy a creature that player controls. It can't be regenerated.
If a spell or ability an opponent controls would target this card, exile this card instead. Then create three legendary 1/1 blue, black Ninja creature tokens named "Ka," "Ren," and "Bo." They have "When this creature deals combat damage to a player, you win the game."