Trench Behemoth + Fastbond + Seraph Sanctuary
Produces: Infinite colorless mana, Infinite landfall triggers, Infinite lifegain triggers
- Trench Behemoth
- Fastbond
- Seraph Sanctuary
- Color identity
- GU
Steps
- Activate Trench Behemoth by returning Seraph Sanctuary from the battlefield to your hand, untapping it.
- Play Seraph Sanctuary, triggering its first ability and Fastbond.
- Resolve the Seraph Sanctuary trigger, causing you to gain 1 life.
- Resolve the Fastbond trigger, dealing 1 damage to you.
- Activate Seraph Sanctuary by tapping it, adding {C}.
- Repeat.
How to execute this combo
The "Trench Behemoth + Fastbond + Seraph Sanctuary" combo takes 6 steps in order. Make sure you have the mana open and permanents listed in the prerequisites before you start — opponents can respond between steps.
The end result: Infinite colorless mana, Infinite landfall triggers, Infinite lifegain triggers.
Practice the line offline: lay out the cards, walk through each step, and note where you can lose the combo (summoning sickness, lack of priority, removal on a key permanent). In game, announce each step clearly; in casual play you can offer to shortcut after demonstrating the loop.
The best window is a turn when opponents are tapped out or after they commit a spell — hold protection (a counter, Vexing Shusher) if the combo wins on the spot.