Autonomous Assembler

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

Vigilance

, : Put a +1/+1 counter on target Assembly−Worker you control.

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

Vigilance

, : Put a +1/+1 counter on target Assembly−Worker you control.