Pactdoll Terror + Biotransference + Herd Baloth + The Destined White Mage

Pactdoll Terror

Biotransference

Herd Baloth

The Destined White Mage

How it works

1. Gain life in any way.
2. The Destined White Mage triggers, putting a +1/+1 counter on Herd Baloth.
3. Herd Baloth triggers, creating a creature token that enters the battlefield as an artifact due to Biotransference.
4. Pactdoll Terror triggers, causing you to gain life.
5. Repeat from step 2.

This loop is a masterclass in turning a single life-gain event into an escalating cascade of triggers. It all starts when The Destined White Mage responds to you gaining life by placing a +1/+1 counter on Herd Baloth, which in turn answers that counter by spawning a 4/4 Beast. Because Biotransference turns all your creature spells, cards, and permanents into artifacts, that newly spawned Beast enters the battlefield as an artifact, instantly triggering Pactdoll Terror. The Terror drains your opponents and gives you back life, which acts as the fuel to fire The Destined White Mage all over again.