Karn, the Great Creator (Japanese Alternate Art) [War of the Spark] Colorless Pay 8 life: Each creature

Pay 8 life: Each creature you control gains indestructible until end of turn

Source 2: Scourge booster pack purchase bonus (2003)

Set: Multiverse Legends Type: Legendary Creature — Hellion Horror Rarity: Rare Cost: {3}{B/R}{B/R} Companion — Your starting deck contains only cards with odd mana values and land cards

Set: POP Series 2 Type: Lightning Rarity: Rare Retreat cost: Colorless

hinting at the kind of strategy they support

Karn, the Great Creator (Japanese Alternate Art) [War of the Spark] Colorless Pay 8 life: Each creatureSet: War of the Spark Type: Legendary Planeswalker Karn Rarity: Rare Cost: {4} Activated abilities of artifacts your opponents control can't be activated. +1: Until your next turn, up to one target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value. 2: You may reveal an artifact card you own from outside the game or choose a face up artifact card you own in exile. Put that card into your hand.