Even if you put a lot of mana into this, the odds of getting more than two or three cards out of it, let alone the four youd need to get your mana back
This ETB can be a big deal, almost giving you a free attack if your board is wide enough
You obviously cant play all 8s or anything, but beware of dragging out games if you dont have them
The explosive popularity of Commander top-down sets full of real-world analogs, and multiple sets with legends matter themes have all contributed to a card pool absolutely flooded with legends, and that means just as many payoffs
This could potentially allow them to connect to multiple creatures at once, allowing them to tap across their board to turn into one mega monster
This is actually an incredibly clever card design