Portcullis Combos
Felidar Guardian + Portcullis
Combo result
Infinite artifact and creature ETB/LTB, infinite ETB/LTB of any creature of your choice.
Prerequisites
Portcullis on the battlefield. Felidar Guardian in hand. Any 2 other creatures on the battlefield under any player's control. Some number of creatures that you own with ETB effects exiled to Portcullis. available.