As an MTG card, this puts it in similar company with budget reanimation spells like Miraculous Recovery, though with the artifact flexibility that allows it to be sacced for other purposes if no longer relevant for that turn
The first is strong as you are tossing on two abilities and likely a counter onto a dork, and the next is a drain ability if you have a Vampire you want to give up for the cause of killing a dork or finish off a planeswalker you just attacked into
But if youre doing D&D, Karlach, Fury of Avernus, the ancient metallic dragons, and the upgrade from venture into the dungeon to the initiative all make Battle for Baldurs Gate stand a full head higher
This creates a neat dynamic where you have to be careful not to destroy Endrek Sahr as you create tokens
So feel free to add walls, damage prevention spells, and other ways of protecting Slimefoot and your other Blood Artists that may slow the game down