Necrotic Ooze + Wizard Class + Barrenton Medic + Talas Researcher

Necrotic Ooze

Wizard Class

Barrenton Medic

Talas Researcher

How it works

1. During your precombat main phase, activate Necrotic Ooze using Talas Researcher's ability by tapping it, causing you to draw a card.
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 elegant loop turns Necrotic Ooze into a one-man engine by stitching together activated abilities from creatures waiting in the graveyard. Once Wizard Class reaches its third level, every card you draw feeds back into the loop by dropping a +1/+1 counter onto the Ooze to continually offset the -1/-1 counters required by Barrenton Medic to untap itself. With the Ooze fully untapping and tapping again via Talas Researcher's copied tap ability, you can draw your entire deck in a flash.