Simian Spirit Guide

Creature — Ape Spirit

Produces: anything being exiled.

Cares about: nothing.

Partners

2,447 cards can cause anything being exiled.

1. Ranar the Ever-Watchful — When Simian Spirit Guide is exiled, Ranar the Ever-Watchful makes a token
2. God-Eternal Bontu — When Simian Spirit Guide is exiled, God-Eternal Bontu triggers
3. Cait Sith, Fortune Teller — When Simian Spirit Guide is exiled, Cait Sith, Fortune Teller gives X/0, where X is that card's mana value
4. The War Doctor — When Simian Spirit Guide is exiled, The War Doctor puts a counter on a permanent
5. Ketramose, the New Dawn — When Simian Spirit Guide is exiled, Ketramose, the New Dawn draws you 1 card
6. Hero of Bretagard — When Simian Spirit Guide is exiled, Hero of Bretagard puts that many counters on a permanent
7. Stonebinder's Familiar — When Simian Spirit Guide is exiled, Stonebinder's Familiar puts a counter on a permanent
8. God-Eternal Rhonas — When Simian Spirit Guide is exiled, God-Eternal Rhonas triggers

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