Felidar Guardian | Portcullis

Cards

Felidar Guardian in hand.
Portcullis on the battlefield.
Any two additional creatures on the battlefield under the control of any player or players.
({3} magic symbol) ({W} magic symbol) available.

Cast
Felidar Guardian by paying ({3} magic symbol) ({W} magic symbol) .
Felidar Guardian enters the battlefield, triggering itself and
Portcullis.
Resolve the
Portcullis trigger, exiling
Felidar Guardian and creating a delayed triggered ability.
Resolve the
Felidar Guardian trigger, blinking
Portcullis.
When
Portcullis leaves the battelfield,
Portcullis's delayed triggered ability triggers, returning
Felidar Guardian and any other creatures exiled with
Portcullis from exile to the battlefield.
When these creatures enter the battlefield,
Felidar Guardian and
Portcullis trigger.
Repeat from step 3.
End the loop by choosing not to blink
Portcullis with
Felidar Guardian in step 4.