Jedit Ojanen, Mercenary + Leyline of Singularity + Earthcraft

Jedit Ojanen, Mercenary

Leyline of Singularity

Earthcraft

How it works

1. Cause a creature to enter the battlefield under your control, which will be legendary due to Leyline of Singularity.
2. Jedit triggers, holding priority, activate a basic Forest by tapping it, adding .
3. Activate Earthcraft by tapping the creature that entered the battlefield, untapping a basic Forest.
4. Resolve the Jedit trigger, causing you to pay to create a 2/2 Cat Warrior creature token that is legendary due to Leyline of Singularity.
5. If you control two or more Cat Warrior tokens, put all but the most recent token into your graveyard due to the legend rule.
6. Repeat from step 2.

This loop turns Jedit Ojanen, Mercenary into an infinite token generator by completely rewriting the rules of the battlefield with Leyline of Singularity, making every single nonland permanent legendary. When a creature enters under your control, Jedit triggers to offer a token for a mana, and Earthcraft steps in to fund that cost by tapping the new arrival to untap a basic Forest. Because Leyline of Singularity ensures that your expanding feline army instantly collides with the legend rule, those excess Cat Warrior tokens immediately head to the graveyard, setting up endless death triggers and leaving you ready to repeat the entire cycle.