Karn, Silver Golem [Urza's Saga] San Diego Comic-Con 2014 you may exile any number

you may exile any number of tokens created with Tetravus

Criosphinx Sovereign or another Sphinx enters the battlefield under your control

Sacrifice Tectonic Edge: Destroy target nonbasic land

Splice onto Arcane {2}{R}{R} (As you cast an Arcane spell

Set: Beta Edition Type: Land — Island Mountain Rarity: Rare ({T}: Add {U} or {R}

Karn, Silver Golem [Urza's Saga] San Diego Comic-Con 2014 you may exile any numberSet: Urza's Saga Type: Legendary Artifact Creature Golem Rarity: Rare Cost: {5} Whenever Karn, Silver Golem blocks or becomes blocked, it gets 4 +4 until end of turn. {1}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn.