Auratog by sacrificing another nontoken Shrine, giving
Auratog +2/+2 until end of turn.
Activate
Jegantha by tapping it, adding ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) that cannot be spent to pay generic mana costs.
Activate
Go-Shintai by paying ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) and tapping it, returning any Shrine from your graveyard to the battlefield.
The Shrine enters the battlefield, triggering
Go-Shintai, creating a 1/1 Shrine enchantment creature token.
The Shrine token enters the battlefield, triggering
Intruder Alarm, untapping all creatures.
Repeat.
Results
Infinite creature tokens.
Infinite death triggers.
Infinite creature ETB.
Infinite creature LTB.
Infinitely large creature until end of turn.
Infinite mana creatures you control can produce.
Infinite creature sacrifice triggers.
Infinite untap of creatures.
Metadata
In 6 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).