Hawkeye, Avenging Archer + Forbidden Orchard + Intruder Alarm + Kelpie Guide

Hawkeye, Avenging Archer

Forbidden Orchard

Intruder Alarm

Kelpie Guide

How it works

1. Activate Forbidden Orchard by tapping it, adding one mana of any color.
2. Forbidden Orchard triggers, creating a 1/1 Spirit creature token under an opponent's control.
3. When the Spirit enters, Intruder Alarm triggers, untapping all creatures.
4. Activate Kelpie Guide by tapping it, untapping Forbidden Orchard.
5. Activate Hawkeye by tapping it, dealing 1 damage to the Spirit token. This'll destroy it due to it having 0 toughness.
6. Hawkeye triggers, causing you to draw a card.
7. Repeat.

This clever loop centers around Intruder Alarm, which constantly resets your board whenever a new creature enters the battlefield. You fuel this engine by tapping Forbidden Orchard for mana, which conveniently hands your opponent a 1/1 Spirit token that triggers the Alarm. To keep the gears turning, Kelpie Guide untaps the Orchard while Hawkeye, Avenging Archer picks off the freshly minted Spirit with its ping ability. Because Hawkeye dealt the damage that sent that Spirit to the graveyard, its triggered ability rewards you with endless card draw alongside your infinite mana and untaps.