Chaos Harlequin

Creature — Human

Produces: anything being exiled.

Cares about: nothing.

Partners

2,447 cards can cause anything being exiled.

1. God-Eternal Bontu — When Chaos Harlequin is exiled, God-Eternal Bontu triggers
2. Cait Sith, Fortune Teller — When Chaos Harlequin is exiled, Cait Sith, Fortune Teller gives X/0, where X is that card's mana value
3. The War Doctor — When Chaos Harlequin is exiled, The War Doctor puts a counter on a permanent
4. Ketramose, the New Dawn — When Chaos Harlequin is exiled, Ketramose, the New Dawn draws you 1 card
5. Laelia, the Blade Reforged — When Chaos Harlequin is exiled, Laelia, the Blade Reforged puts a counter on a permanent
6. Stonebinder's Familiar — When Chaos Harlequin is exiled, Stonebinder's Familiar puts a counter on a permanent
7. God-Eternal Rhonas — When Chaos Harlequin is exiled, God-Eternal Rhonas triggers

5 other cards ask for it too, equally specific. The ones shown are the best connected.