Cheapest priced copy (The Brothers' War Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Vedalken Humiliator 
Creature — Vedalken Wizard · 3/4 · Rare · March of the Machine Commander · #243
Metalcraft — Whenever this creature attacks, if you control three or more artifacts, creatures your opponents control lose all abilities and have base power and toughness 1/1 until end of turn.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Brothers' War Commander | 100 | Rare | $0.49 | — |
| Commander 2018 | 13 | Rare | $0.49 | — |
| March of the Machine Commander | 243 | Rare | $0.49 | — |
5 rulings from Wizards of the Coast
- 13 July 2018Any power- or toughness-modifying effects (those that give +N/+N, for example) and counters will apply to the creature's new base power and toughness, even if they started to apply before Vedalken Humiliator's ability resolved.
- 13 July 2018If you don't control three artifacts as Vedalken Humiliator's ability resolves, it has no effect. If you do, the effect continues to apply even if you lose control of Vedalken Humiliator or your artifacts later in the turn.
- 13 July 2018Vedalken Humiliator's ability overwrites all previous effects that set an affected creature's base power and toughness to specific values. Any power- or toughness-setting effects that start to apply to a creature after the ability resolves will overwrite this effect.
- 13 July 2018Vedalken Humiliator's ability affects only creatures your opponents control at the time it resolves. Creatures they begin to control later in the turn won't lose power, toughness, or abilities.
- 13 July 2018All creatures your opponents control are affected by Vedalken Humiliator's ability, not just those controlled by the player it's attacking.