Vilis, Broker of Blood + Words of Worship + Yavimaya Bloomsage // Channel

How it works

Cast a copy of Channel from exile by paying , unpreparing Yavimaya Bloomsage.
Use Channel's ability by paying 1 life, adding .
When you lose life, Vilis triggers.
In response, activate Words of Worship by paying , creating a replacement effect.
Resolve the Vilis trigger, causing you to gain 5 life instead of drawing a card due to the replacement effect.
Repeat from step 2 any number of times.
Once you have gained an arbitrarily high amount of life, you may use Channel's ability any number of times, adding colorless mana and drawing cards with Vilis.
Once you have drawn your library, you will have for each card drawn this way.
You can then continue to use Channel, adding infinite , as long as you have drawn a way to remove Vilis or can use the mana to win at instant speed before Vilis's triggers resolve and cause you to lose by drawing from an empty library.

In which brackets is this combo allowed, per Spellbook's Exhibition tier?

1–2 · Exhibition & Core

Allowed in this bracket.

3 · Upgraded

Allowed in this bracket.

4–5 · Optimized & cEDH

All combos are allowed.