Sundial of the Infinite [Mystery Booster] March of the Machine Promos Wisdom is a well that

Wisdom is a well that never runs dry

The Earth herself lends her strength to these walls of living stone

it has all activated abilities of all creature cards in all graveyards

Not so scary when you can't squeeze through the air ducts

It is my duty to keep that bowl full

Sundial of the Infinite [Mystery Booster] March of the Machine Promos Wisdom is a well thatSet: 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.)