Summon: Knights of Round by paying ({6} magic symbol) ({W} magic symbol) ({W} magic symbol) .
Holding priority, activate
Myojin of Cryptic Dreams by removing an indestructible counter from it, copying
Summon: Knights of Round three times.
Resolve a copy of the
Summon: Knights of Round spell, choosing to have it enter with five lore counters on it due to its read-ahead ability.
The
Summon: Knights of Round token's fifth chapter ability triggers, causing creatures you control to get +2/+2 until end of turn and putting an indestructible counter on each of them, and then causing you to sacrifice the
Summon: Knights of Round token.
Repeat from step 2.
Notes
With the extra two copies of the Summon: Knight of Round spell, you can have them enter and create infinite creature tokens.
Results
Infinite LTB.
Infinite ETB.
Infinite sacrifice triggers.
Infinite death triggers.
Infinitely large creatures until end of turn.
Infinite copies of any permanent spells you control.