Soul's Attendant Combos
Heliod, Sun-Crowned + Herd Baloth + Soul's Attendant
Yawgmoth, Thran Physician + Scurry Oak + Soul's Attendant
Combo result
Infinite card draw. Infinite draw triggers. Near-infinite ETB. Near-infinite LTB. Near-infinite death triggers. Near-infinite sacrifice triggers. Near-infinite lifegain triggers.
Prerequisites
Yawgmoth in hand. All other permanents on the battlefield. You control at least two additional creatures. Scurry Oak has no +1/+1 counters on it. {B}{B} available.
Trudge Garden + Mana Echoes + Soul's Attendant
Trudge Garden + Ashnod's Altar + Soul's Attendant
Treebeard, Gracious Host + Scurry Oak + Soul's Attendant
Soul's Attendant + Felidar Guardian + Restoration Angel
Ratchet, Field Medic // Ratchet, Rescue Racer + Sculpting Steel + Soul's Attendant
Combo result
Infinite ETB. Infinite lifegain. Infinite lifegain triggers.
Prerequisites
Sculpting Steel in hand. All other permanents on the battlefield. Ratchet on the battlefield as Ratchet, Rescue Medic. Ratchet is your commander. You have gained at least two life this turn. {W} available plus enough mana to pay for commander tax, if applicable.