The Chain Veil + Ashnod's Altar + Aphetto Alchemist + Intruder Alarm + Garruk, Cursed Huntsman

The Chain Veil

Ashnod's Altar

Aphetto Alchemist

Intruder Alarm

Garruk, Cursed Huntsman

How it works

1. Activate Garruk's first loyalty ability by putting zero loyalty counters on it, creating two 2/2 Wolf creature tokens.
2. When the Wolfs enter the battlefield, Intruder Alarm triggers twice.
3. Resolve the first trigger, untapping all creatures.
4. Activate Aphetto Alchemist by tapping it, untapping The Chain Veil.
5. Resolve the second Intruder Alarm trigger, untapping all creatures.
6. Activate Aphetto Alchemist by tapping it, untapping target artifact or creature.
7. Activate Ashnod's Altar twice by sacrificing the two Wolf tokens, adding CCCC.
8. When the Wolves die, they trigger, putting two loyalty counters on each Garruk planeswalker you control.
9. Activate The Chain Veil by paying 4 and tapping it, allowing you an additional activation of your planeswalkers' loyalty abilities this turn.
10. Repeat.

This intricate loop hinges on Intruder Alarm transforming every creature entering the battlefield into an untap engine for your entire board. With those influxes of fresh creatures, Aphetto Alchemist continuously untaps The Chain Veil to bypass loyalty limits and Ashnod's Altar to convert the Wolf tokens generated by Garruk, Cursed Huntsman into the four generic mana needed to keep the Veil's activation fee paid. Because Garruk's Wolves also trigger their own loyalty-buffing deaths when fed to the Altar, Garruk easily climbs back up in loyalty while cycling through an infinite storm of token bodies and mana.