Rings of Brighthearth + Forsaken Monument + Grim Monolith

Prerequisites

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Steps

1. 1Activate Grim Monolith's first ability by tapping it, adding .
2. 2Forsaken Monument triggers, adding .
3. 3Activate Grim Monolith's second ability by paying .
4. 4Rings of Brighthearth triggers, causing you to pay to copy Grim Monolith's ability.
5. 5Resolve the first Grim Monolith ability, untapping it.
6. 6Activate Grim Monolith's first ability by tapping it, adding .
7. 7Forsaken Monument triggers, adding .
8. 8Resolve the second Grim Monolith ability from step 3, untapping it.
9. 9Repeat.

Effects

• Infinite colorless mana