Silent-Blade Oni [Planechase Anthology] Duels of the Planeswalkers Promos 2009 Whenever you tap a Swamp

Whenever you tap a Swamp for mana

"Consider the fable of the greedy herder

Annihilator 4 (Whenever this creature attacks

You may look at and play that card for as long as it remains exiled

Silent-Blade Oni [Planechase Anthology] Duels of the Planeswalkers Promos 2009 Whenever you tap a SwampSet: Planechase Anthology Type: Creature Demon Ninja Rarity: Rare Cost: {3}{U}{U}{B}{B} Ninjutsu {4}{U}{B} ({4}{U}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever Silent Blade Oni deals combat damage to a player, look at that player's hand. You may cast a spell from among those cards without paying its mana cost.