Powder Keg (Jakub Slemr) [World Championship Decks 1999] Elf Advisor but you may put it

but you may put it on top of your library instead of into your graveyard

Set: Zendikar Expeditions Type: Land — Island Swamp Rarity: Mythic ({T}: Add {U} or {B}

Signal Pest can't be blocked except by creatures with flying or reach

Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {1} Mana Vault doesn't untap during your untap step

Powder Keg (Jakub Slemr) [World Championship Decks 1999] Elf Advisor but you may put itSet: 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 mana value equal to the number of fuse counters on Powder Keg.