Because you are only allowed to have 1 ACE SPEC Trainer card in your deck, some people would say that it really doesnt matter that much because there is only one of them, so it wont be a consistent part of your strategy
Mirage Significant cards on the list: Catacomb Dragon $2 Lions Eye Diamond $65 Phyrexian Dreadnought $15 Shallow Grave $4 Spirit of the Night $5 Teekas Dragon $2 Zirlian of the Claw $4 Lions Eye Diamond is a broken card, essential as a four-of in the decks that run it, that will never be reprinted
Alternately, one of my favorite defensive 3CMC creatures is Graveblade Marauder, since its offensive capabilities can rapidly increase
Starmie BREAK is a BREAK, Stage 2, water type Pokemon card, with a HP of 130
It also has a great set up for an early The Great Henge, which can go on board as quickly as turn three or four with the help of Bayou Groff
The work is massive, the technique to make it both legible for each card while still working as an overall image is unprecedented