Powder Keg [Urza's Destiny]

Powder Keg [Urza's Destiny]Set: Urza's Destiny 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.

and a land

Set: Mercadian Masques Type: Sorcery Rarity: Rare Cost: {4}{W} Each creature deals damage to itself equal to its power

you may reveal this card from your hand and pay its splice cost

Set: Ninth Edition Type: Instant Rarity: Common Cost: {2}{R} Add {R}{R}{R}{R}{R}

its owner shuffles their graveyard into their library

+1: Untap up to four target Forests

then destroy target creature of an opponent's choice

Set: Alpha Edition Type: Instant Rarity: Rare Cost: {U} Target spell or permanent becomes blue

you may pay {1}

One of the few Soltari who can cross the shadow barrier

destroy target artifact

the Ceaseless Hunger attacks