11 cards where the card is tagged “invitational card”

Avalanche Riders (Time Spiral Timeshifted #55)
Dark Confidant (Ravnica Remastered #71)
Meddling Mage (Double Masters #210)
Rakdos Augermage (Dissension #127)
Ranger of Eos (Modern Masters 2017 #19)
Rootwater Thief (Nemesis #40)
Shadowmage Infiltrator (Outlaws of Thunder Junction Commander #240)
Snapcaster Mage (Ultimate Masters #71)
Solemn Simulacrum (Foundations #257)
Sylvan Safekeeper (Modern Horizons 3 #287)
Voidmage Prodigy (Time Spiral Timeshifted #34)

It is the moment of discovery, the triumph of the mind, and the end of these results.