Time Sieve + Encroaching Mycosynth + Delina, Wild Mage + Izoni, Thousand-Eyed

Time Sieve

Encroaching Mycosynth

Delina, Wild Mage

Izoni, Thousand-Eyed

How it works

1. Declare Delina as an attacker.
2. Delina triggers, creating at least one nonlegendary token copy of Izoni with haste.
3. When the Izoni token enters the battlefield, it triggers, creating at least four 1/1 Insect creature tokens.
4. Activate Time Sieve by tapping it, sacrificing the Izoni token and the Insect tokens, causing you to take an extra turn after this one.
5. Repeat each turn.

This clever loop turns Delina, Wild Mage into a relentless engine for infinite turns by taking advantage of Encroaching Mycosynth's continuous transformation of your board. Because Encroaching Mycosynth turns all nonland permanents you control into artifacts, every creature token you create automatically counts toward Time Sieve's sacrifice requirement. When Delina attacks and copies Izoni, Thousand-Eyed, the resulting token floods the battlefield with Insect creature tokens that immediately double as artifact fuel. You simply tap Time Sieve and sacrifice that freshly minted army of artifact creatures to secure an extra turn, repeating the process indefinitely to lock the game down.