Sundial of the Infinite [Mystery Booster] BW97 but woe awaits whomever finds

but woe awaits whomever finds out who stokes the fire or what simmers in the pot

Set: Kaladesh Inventions Type: Artifact Creature — Construct Rarity: Mythic Cost: {X}{X} Hangarback Walker enters the battlefield with X +1/+1 counters on it

Set: Battlebond Type: Creature — Spirit Rarity: Rare Cost: {3}{G}{G} Untap all permanents you control during each other player's untap step

they are best left alone

choose up to six cards you own from outside the game with a moon in their art

Sundial of the Infinite [Mystery Booster] BW97 but woe awaits whomever findsSet: Mystery Booster Type: Artifact Rarity: Rare Cost: {2} {1}, {T}: End the turn. Activate only during your turn. (Exile all spells and abilities from the stack. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)