Rootwire Amalgam [The Brothers' War]

Prototype 1G — 2/3 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

3GG, Sacrifice Rootwire Amalgam: Create an X/X colorless Golem artifact creature token, where X is three times Rootwire Amalgam's power. It gains haste until end of turn. Activate only as a sorcery.