Tangled Colony + Phyrexian Altar + Deadeye Navigator + Shivan Meteor + Timeless Witness

Tangled Colony

Phyrexian Altar

Deadeye Navigator

Shivan Meteor

Timeless Witness

How it works

1. Cast Shivan Meteor by paying 3, dealing 13 damage to Tangled Colony.
2. Tangled Colony dies as a state-based action due to having less than 0 toughness.
3. Tangled Colony triggers, creating thirteen 1/1 Rat creature tokens.
4. Activate Phyrexian Altar eleven times by sacrificing eleven Rats, adding 6.
5. Activate Timeless Witness by paying 1, blinking it.
6. When Timeless Witness enters the battlefield, it and Deadeye Navigator's soulbond ability trigger.
7. Resolve the Deadeye Navigator trigger, repairing it and Timeless Witness.
8. Resolve the Timeless Witness trigger, returning Tangled Colony to your hand from your graveyard.
9. Repeat from step 5 one additional time, returning Shivan Meteor to your hand using Timeless Witness instead.
10. Cast Tangled Colony by paying 1.
11. Repeat.

This ingenious loop relies on turning overkill into an engine: you point Shivan Meteor's massive 13 damage directly at your own Tangled Colony, triggering a massive payout of thirteen 1/1 Rat tokens upon its death. Phyrexian Altar immediately converts those sacrificial fodder into the exact mana you need to recast your threats and fuel Deadeye Navigator's flicker ability. Meanwhile, Timeless Witness acts as your recursive retrieval piece—whenever you blink it using the soulbonded activation provided by Deadeye Navigator, its entry trigger plucks either Tangled Colony or Shivan Meteor right back out of your graveyard to hand.