Well, I invented something we had never done in Magic before to showcase it: At one point I thought about putting this on a cycle of big bosses, but in the end, I felt it could just stand alone on Ancient Adamantoise as something splashy and unique and that would get some weird attention of its own
Multiple-play tactics can be considered kind of a sleazy way to get around the restrictions on certain cards
Grant you'll need a way to make it "not legendary" but even so
(Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays 3 life.) Whenever you cast an instant or sorcery spell, you may sacrifice an artifact
Abrade is good enough without artifacts to target and an absolute life saver sometimes where there are
Meanwhile, his controller is made to draw a card and gain three life