Halo Fountain + Vedalken Engineer + Karn, Silver Golem

Prerequisites

• Vedalken Engineer and Halo Fountain do not have summoning sickness.

Steps

1. 1Activate Karn by paying , causing Halo Fountain to become an artifact creature until end of turn.
2. 2Activate Vedalken Engineer by tapping it, adding that can only be spent to cast artifact spells or activate abilities of artifacts.
3. 3Activate Halo Fountain's second ability by paying , tapping it and untapping Halo Fountain and Vedalken Engineer, causing you to draw a card.
4. 4Repeat from step 2.

Effects

• Infinite card draw
• Infinite draw triggers