Powder Keg [Magic Player Rewards 2004] Rise of the Eldrazi Add an amount of {B}

Add an amount of {B} equal to the sacrificed creature's converted mana cost

Pyromaster deals 1 damage to target player or planeswalker and 1 damage to up to one target creature that player or that planeswalker's controller controls

which possess the stability of ancient mountains

Set: Portal Three Kingdoms Type: Sorcery Rare Cost: {3}{W} Destroy all lands

which can be quite unsettling for their prey

Powder Keg [Magic Player Rewards 2004] Rise of the Eldrazi Add an amount of {B}Set: Magic Player Rewards 2004 Type: Artifact 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.