Silent-Blade Oni [Planechase 2012] Wurm If the player doesn't discard

If the player doesn't discard a card this way

Set: Dark Ascension Promos Type: Creature — Zombie Rarity: Rare Cost: {B} Gravecrawler can't block

Set: Exodus Type: Enchantment Rare Cost: {G} At the beginning of your end step

If you revealed a card but didn't put it onto the battlefield

Silent-Blade Oni [Planechase 2012] Wurm If the player doesn't discardSet: Planechase 2012 Type: Creature Demon Ninja 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.