Necrotic Ooze + Wizard Class + Barrenton Medic + Thought Courier

Necrotic Ooze

Wizard Class

Barrenton Medic

Thought Courier

How it works

1. Activate Necrotic Ooze using Thought Courier's ability by tapping it, causing you to loot.
2. Wizard Class triggers, putting a +1/+1 counter on Necrotic Ooze.
3. Activate Necrotic Ooze using Barrenton Medic's second ability by putting a -1/-1 counter on it, untapping it.
4. Repeat.

This clever loop turns your graveyard into a self-contained engine by letting Necrotic Ooze inherit the activated abilities of every creature lying in wait. With Wizard Class leveled up to three, every card drawn transforms into a permanent growth spurt, placing a +1/+1 counter directly onto the Ooze. That influx of counters completely neutralizes the downside of borrowing Barrenton Medic's untap ability, which relies on peppering the creature with -1/-1 counters. Meanwhile, Thought Courier supplies the active engine work, letting you tap the Ooze to draw and discard infinitely while cycling through your entire deck.