This spell can't be countered.MenaceWhenever a player casts a spell, if the amount of mana spent to cast it was less than its mana value, Tokka & Rahzar deal 3 damage to that player.
Sneak First strikeWhenever Shark Shredder deals combat damage to a player, put up to one target creature card from that player's graveyard onto the battlefield under your control. It enters tapped and attacking that player.
Sneak (You may cast this spell for if you also return an unblocked attacker you control to hand during the declare blockers step. He enters tapped and attacking.)When Leonardo enters, if his sneak cost was paid, creatures you control get +2/+0 until end of turn.: Leonardo gains first strike until end of turn.
Sneak (You may cast this spell for if you also return an unblocked attacker you control to hand during the declare blockers step.)Each player may discard their hand and draw seven cards.
Search your library and/or outside the game for exactly four legendary creature cards you own with different names, then reveal those cards. An opponent chooses two of them. Put the chosen cards into your hand and shuffle the rest into your library.
Sneak First strikeWhenever Shark Shredder deals combat damage to a player, put up to one target creature card from that player's graveyard onto the battlefield under your control. It enters tapped and attacking that player.