Powder Keg (Jakub Slemr) [World Championship Decks 1999] U-WTR000 you may exile a blue

you may exile a blue card from your hand rather than pay this spell's mana cost

Set: Unlimited Edition Type: Creature — Bird Rarity: Rare Cost: {3}{R} Flying

Set: Legends Type: Enchantment Rarity: Rare Cost: {2}{U}{U} If an opponent who controls at least as many lands as you do would put a land onto the battlefield

Set: HasCon 2017 Type: Sorcery Rarity: Mythic Cost: {3}{U}{R} Fire a Nerf® blaster until empty at target library from at least two meters away

Set: Judge Gift Cards 2006 Type: Creature — Angel Rarity: Rare Cost: {4}{W}{W} Destroy target artifact

Powder Keg (Jakub Slemr) [World Championship Decks 1999] U-WTR000 you may exile a blueSet: World Championship Decks 1999 Type: Artifact Rarity: Rare Cost: {2} At the beginning of your upkeep, you may put a fuse counter on Powder Keg. {T}, Sacrifice Powder Keg: Destroy each artifact and creature with converted mana cost equal to the number of fuse counters on Powder Keg.