Experiment Kraj Felix Five-Boots Ice Flan Mimeoplasm, Revered One Prime Speaker Vannifar Slick Imitator Slogurk, the Overslime The Mimeoplasm Vannifar, Evolved Enigma
7: You get an emblem with "Tap an untapped artifact you control: This emblem deals 1 damage to any target." Legendary Planeswalker - Karn Urza, Lord High Artificer When Urza enters, create a 0/0 colorless Construct artifact creature token with "This token gets +1/+1 for each artifact you control." Tap an untapped artifact you control: Add
The scarcity helps the cards command a high price when they hit the market
When building a list of the most expensive, you have to refine your discussion to either include or exclude these three sets, as you would never make it to a consideration of the expansions or later traded cards without excluding these
Since this ability triggers once per turn, youll want ways to exile or recur cards consistently
Again, the amount of possibilities card combos can create are seemingly endless, making it hard to include all of them