The Countering Runner [Mystery Booster 2 Playtest Cards] Gladiator put one onto the battlefield

put one onto the battlefield tapped and the other into your hand

Whenever you discard a card

WardŃSacrifice two permanents

Whenever one or more other Cats you control die

creatures you control get +X/+X and gain haste until end of turn

The Countering Runner [Mystery Booster 2 Playtest Cards] Gladiator put one onto the battlefieldSet: Mystery Booster 2 Playtest Cards Type: Legendary Creature Merfolk Gamer Rarity: Rare Cost: {3}{U}{U} Spells you cast that would counter a spell cost {U}{U} less to cast. Whenever a spell an opponent controls is countered by a spell or ability you control, draw a card. The Countering Runner deals 2 psychic damage to that player. (Psychic damage doesn't cause loss of life, but a player who's been dealt 20 psychic damage loses the game.) Ready to