Protean Thaumaturge
Buy at Card Kingdom$0.69

Cheapest priced copy (Theros Beyond Death): $0.49 at Card Kingdom, near mint, their price list as of .

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Protean Thaumaturge {1}{U}

Creature — Human Wizard · 1/1 · Rare · Theros Beyond Death · #306

Constellation — Whenever an enchantment you control enters, you may have this creature become a copy of another target creature, except it has this ability.

Legal inCommanderPioneerModernLegacyVintage

Not legal inBrawlStandardPauper

4 printings · $0.49 to $1.49 at Card Kingdom
SetNumberRarityCard KingdomFoil
Theros Beyond Death Promos60pRare$0.69$0.79
Theros Beyond Death Promos60sRare—$0.69
Theros Beyond Death60Rare$0.49$0.49
Theros Beyond Death306Rare$0.69$1.49
8 rulings from Wizards of the Coast
  1. 24 January 2020If something becomes a copy of Protean Thaumaturge, it also has the constellation ability.
  2. 24 January 2020A constellation ability triggers whenever an enchantment enters the battlefield under your control for any reason. Enchantments with other card types, such as enchantment creatures, will also cause constellation abilities to trigger.
  3. 24 January 2020Protean Thaumaturge’s ability causes it to become a copy indefinitely. It doesn’t expire during the cleanup step or if the target creature leaves the battlefield after the ability has resolved.
  4. 24 January 2020An Aura spell that has an illegal target when it tries to resolve doesn’t resolve and is instead put into its owner’s graveyard. It doesn’t enter the battlefield, so constellation abilities don’t trigger.
  5. 24 January 2020If an effect begins to apply to Protean Thaumaturge before it becomes a copy of another creature, that effect will continue to apply.
  6. 24 January 2020Protean Thaumaturge copies the printed values of the target creature, plus any copy effects that have been applied to it. It won’t copy counters on that creature or effects that have changed its power, toughness, types, color, or so on. Notably, it won’t copy effects that made the target creature become a creature.
  7. 24 January 2020If an enchantment creature enters the battlefield under your control, Protean Thaumaturge’s ability can target it.
  8. 24 January 2020If Protean Thaumaturge copies a creature that’s copying something else, it will become whatever the target is copying.