Skullsnatcher

Ninjutsu was a keyword built to reward a connecting attacker, and most of the cycle paid out in cards or board presence; this one pays out in graveyard hate. The body is a fragile 2/1 with no evasion of its own, which is the whole point: ninjutsu lets it ignore the question of getting past blockers by swapping in for an attacker that already slipped through. You return the unblocked creature, drop the Rat Ninja in tapped and attacking, connect, and up to two cards leave an opponent's yard for good. That stitches a piece of maindeckable disruption onto a tempo play rather than spending a dedicated card on a one-shot exile spell. The trigger is narrow by design, aimed at flashback, delve, reanimation, and the rest of the graveyard-as-resource toolkit that this kind of attrition was meant to police. The tension worth sitting with is that the disruption rides entirely on a single combat connection: ninjutsu puts Skullsnatcher onto the battlefield to stay, so absent an outside way to bounce it back to hand, you get one exile event per swing, not a recurring loop. What you are buying is the conversion of a turn's worth of tempo into two exiled cards. That makes it earn its slot only where chewing two cards out of a graveyard each turn meaningfully bends a game, and where the exposed 2/1 surviving long enough to keep swinging is a bet you are willing to make.