Rith, the Awakener + Breath of Fury + Phyrexian Altar + Anger

Rith, the Awakener

Breath of Fury

Phyrexian Altar

Anger

How it works

1. Deal combat damage using Rith and the creature with Breath of Fury attached, triggering Rith and Breath of Fury.
2. Resolve the Rith trigger, causing you to pay 2 to create at least four 1/1 Saproling creature tokens.
3. Resolve the Breath of Fury trigger, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to a Saproling token, then causing you to untap all creatures you control and to get an additional combat phase after this one.
4. Move to your next combat phase, and deal combat damage using Rith and the creature with Breath of Fury attached, triggering Rith and Breath of Fury.
5. Holding priority, activate Phyrexian Altar three times by sacrificing three Saprolings, adding 2.
6. Repeat from step 2.

This vicious loop hinges on chaining extra combat steps together by recycling Breath of Fury onto a fresh body every single turn. When Rith, the Awakener connects alongside your enchanted creature, its damage trigger feeds off a crowded board to churn out an army of Saproling tokens, which instantly gain the ability to rush forward thanks to Anger granting haste from the graveyard as long as you control a Mountain. Phyrexian Altar provides the crucial engine grease by converting those freshly minted tokens into the exact green mana needed to fund Rith's recurring creation cost. By sacrificing the old Breath host, moving the Aura to a new token, untapping your entire team, and repeating the assault, you generate infinite combat phases and infinite creature tokens to overwhelm any opponent.