Kate Stewart + Intruder Alarm + Hourglass of the Lost + Katsumasa, the Animator
Kate Stewart
Intruder Alarm
Hourglass of the Lost
Katsumasa, the Animator
Infinite creature ETBInfinite creature tokensInfinite mana creatures you control can produceInfinite untap of creaturesInfinite white manaInfinitely large creatures you control until end of turn
How it works
Animate Hourglass of the Lost using Katsumasa.
Activate Hourglass of the Lost's first ability by tapping it, adding and putting a time counter on it.
Kate's first ability triggers, creating a 1/1 Soldier creature token.
When the Soldier enters, Intruder Alarm triggers, untapping all creatures.