[TDIL] Black Dragon Ninja

Level 7 DARK Beast-Type Effect Monster
ATK 2800
DEF 1600
Cannot be Special Summoned, except by the effect of a “Ninja” monster or “Ninjitsu Art” card.
(1) Once per turn, during either player’s turn: You can send from your hand/field to the Graveyard, 1 “Ninja” monster and 1 “Ninjitsu Art” card, then target 1 monster on the field; banish it.
(2) If this face-up card leaves the field: Special Summon (all?) monsters banished by this card’s effect to their owner’s field in (Defense Position?).