Ayara's Oathsworn + Beacon of Tomorrows + Fain, the Broker

Mana needed: {6}{U} each turn

UB identity

Commander legal

The 3 combo pieces

What must be in place

Ayara's Oathsworn and Fain do not have summoning sickness.
Ayara's Oathsworn has exactly three +1/+1 counters on it.
An opponent cannot block Ayara's Oathsworn.

How to execute it

  1. Deal combat damage to an opponent using Ayara's Oathsworn.
  2. Ayara's Oathsworn triggers, putting a +1/+1 counter on it and searching your library for Beacon of Tomorrows and putting it into your hand.
  3. Activate Fain's second ability by tapping it and removing a +1/+1 counter from Ayara's Oathsworn, creating a Treasure token.
  4. Activate the Treasure by tapping and sacrificing it, adding {U}.
  5. Cast Beacon of Tomorrows by paying {6}{U}{U}, causing you to take an extra turn after this one, and shuffle Beacon of Tomorrows into your library.
  6. Repeat each turn.

What the combo produces