charizard pokemon card 6/108 (6/108) [EX: Power Keepers] Preserved in a tamper Buy PSA Graded TCG Card

If there's a cost associated with having Ursine Monstrosity attack the chosen player, you aren't forced to pay that cost, so it doesn't have to attack that player in that case either

A copy of the McDonald's Multimixer card legitimately sold for 212 recently

Whenever you cast your first spell during each opponent's turn, put a +1/+1 counter on Arena Trickster

The eight-costed demon shouldn't be too much of an issue with all the mana we're going to be able to produce, and with lots of thopter tokens floating around from cards like Efficient ConstructionEfficient Construction and Thopter Spy NetworkThopter Spy Network we will be assembling kills so fast Donald Trump won't even believe my claim about how fast we'll be assembling kills

In short, it's power and toughness are equal to the most expensive artifact you've got in play, and you get some mana on each of your upkeeps that never goes away