Trench Behemoth + Fastbond + Rugged Highlands

Trench Behemoth

Fastbond

Rugged Highlands

How it works

1. Activate Trench Behemoth by returning Rugged Highlands from the battlefield to your hand, untapping it.
2. Play Rugged Highlands, triggering it and Fastbond.
3. Resolve the Rugged Highlands trigger, causing you to gain 1 life.
4. Resolve the Fastbond trigger, dealing 1 damage to you.
5. Repeat.

This vintage-legal loop turns your mana base into a self-sustaining engine by capitalizing on Fastbond's ability to let you play any number of lands on your turn, bypassing normal land-drop limits. You simply bounce Rugged Highlands using Trench Behemoth's activation to untap the Behemoth, then replay the land to trigger its entry ability. While Fastbond exacts a 1 damage toll for every land after your first, the inherent lifegain from Rugged Highlands effortlessly offsets that cost to net you infinite life alongside your infinite landfall triggers.