Yannik, Scavenging Sentinel | Glorious Protector | Felidar Guardian

Cards

({4} magic symbol) ({G} magic symbol) ({W} magic symbol) ({W} magic symbol) plus enough mana to pay for commander tax, if applicable, plus ({W} magic symbol) if
Glorious Protector was not foretold available.

Cast
Yannik by paying ({2} magic symbol) ({G} magic symbol) ({W} magic symbol) plus commander tax, if applicable.
Yannik enters the battlefield, triggering itself, exiling
Felidar Guardian until
Yannik leaves the battlefield and triggering the last part of its ability.
Resolve this trigger, putting a +1/+1 counter on any target creature.
Cast
Glorious Protector by paying ({2} magic symbol) ({W} magic symbol) ({W} magic symbol) .
Glorious Protector enters the battlefield, triggering itself, exiling
Yannik and any number of other non-Angel creatures you control until
Glorious Protector leaves the battlefield.
Felidar Guardian returns from exile to the battlefield due to
Yannik leaving the battlefield, triggering itself, blinking
Glorious Protector.
Yannik returns from exile to the battlefield without using the stack due to
Glorious Protector leaving the battlefield.
When
Yannik and
Glorious Protector enter the battlefield, they each trigger themselves.
Resolve
Yannik's trigger, exiling
Felidar Guardian until
Yannik leaves the battlefield and triggering the last part of its ability.
Resolve this trigger, putting a +1/+1 counter on any target creature.
Resolve the
Glorious Protector trigger, exiling
Yannik until
Glorious Protector leaves the battlefield.
Repeat from step 6.