When it enters the battlefield, you can imprint a colorless card (it doesn't have to be a creature) with a mana of seven or greater
So naturally he was at the forefront of a strategy known as Ultimate Mewtwo & Mew, which featured a toolbox of unique attacks and was no longer reliant on Welder following the change in game rules that meant the player going first could no longer play a Supporter card during their first turn
See also: Master set guide, Binder layout planner What are the pull rates for Crown Zenith Galarian Gallery and VSTAR cards? Community data from 4,000+ packs shows Galarian Gallery pull rate of 1:12 packs (8.3% chance per pack), VSTAR cards 1:24 packs (4.17%), Radiant cards 1:36 packs (2.78%)
In the world we live in, though, most players (rightly) do not choose to play with Ornithopter in their decks, because the cost of one card is too high for the effect of a measly 0/2 creature
Mirror Entity is a great finisher for most tribal decks, but in Rebel tribal it becomes even better as it counts as a Rebel and that means we can recruit it easily on board too