Yugi, blue eyes, Joey Red eyes, etc
Aquastrand Spider Cytoplast Manipulator Cytoplast Root-Kin Cytospawn Shambler Helium Squirter Llanowar Reborn Novijen Sages Plaxcaster Frogling Simic Basilisk Simic Initiate Sporeback Troll Stitcher's Graft Vigean Graftmage Vigean Hydropon
In my ideal, I envision a trainer making difficult decisions of how to proceed each round
The characteristics of the door that wasn't cast are still ignored while the copy is on the stack, and when the copy resolves, the token it becomes will enter with the appropriate door unlocked
Having Menace means hes not going to be easy to block, and the Final Aeon is more likely than not to happen
Since then, Wizards has made up for lost time by printing quite a few powerful dinosaur cards