If the biggest drawback you're looking at is three in the cost or that it is not legendary and thus cannot be your commander, that's a sign we have a bomb of a vampire
During internal testing, this little artifact used to give a +1/+1 buff, just like an equipable +1/+1 counter
There are exceptions to this rule, but for the purposes of our explanation, we'll write those off (if a card has neither a weakness nor a resistance, it's not exactly good for explaining the concept!)
Now let's turn to synergies
It is for good reason, as forcing everyone in a match to need to play a subgame in their Magic game is going to add a ton of time to the match
While attached, this isn't a creature.) Creature Artifact - Equipment Cat Removal (CTRL to add secondary) Tokens Brimaz, King of Oreskos Vigilance Whenever Brimaz attacks, create a 1/1 white Cat Soldier creature token with vigilance that's attacking