Powder Keg (Jakub Slemr) [World Championship Decks 1999] Gladiator you may change "nonred creature"

you may change "nonred creature" to "nongreen creature" or "plainswalk" to "swampwalk

you control the player while that spell is resolving

or the creature's toughness

"My vision is for the good of everyone

At the beginning of each end step or when Tombstone Stairwell leaves the battlefield

Powder Keg (Jakub Slemr) [World Championship Decks 1999] Gladiator you may change "nonred creature"Set: 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.