Altaria - XY46 (Prerelease) [Staff] (XY46) [XY Promos] Arena League 2002 and that player can't activate

and that player can't activate abilities that aren't mana abilities

Set: Alpha Edition Type: Creature — Human Barbarian Rarity: Uncommon Cost: {2}{R}{R} Keldon Warlord's power and toughness are each equal to the number of non-Wall creatures you control

Set: Judge Gift Cards 2009 Type: Instant Rarity: Rare Cost: {B} Add {B}{B}{B}

Set: Legends Type: Legendary Creature — Human Warrior Rarity: Rare Cost: {3}{W}{W}{U}{U} First strike

Set: Friday Night Magic 2000 Type: Instant Rarity: Rare Cost: {1}{B} Destroy target nonartifact

Altaria - XY46 (Prerelease) [Staff] (XY46) [XY Promos] Arena League 2002 and that player can't activateSet: XY: Black Star Promos Type: Colorless Rarity: Promo Retreat cost: Colorless