Activated Sleeper + Hell's Caretaker + Smellerbee, Rebel Fighter…

€ 1,12
Activated Sleeper
Creature — Phyrexian Shapeshifter
€ 0,74
Hell's Caretaker
Creature — Horror
€ 1,12
Smellerbee, Rebel Fighter
Legendary Creature — Human Rebel Ally

Result

Combo data from Commander Spellbook.