That said, its a lot of mana to cast, so you really need to go out of your way to enable it
Exile any number of target spells
Lets look at Loot, the Pathfinder
Our goals with the upgrade are: Add more sacrifice outlets to enable our Commander, Clavileo Upgrade our removal package Increase consistency with more card advantage and better vampires The precon itself already comes with a bunch of good recursion pieces, so lets lean into that and make sure our aristocrat shenanigans have both good enablers and good ways to bounce back
At 6 mana, that reaches the top range you would want for that effect, but with the bad rate it generally wouldn't be worth considering in most circumstances
Excalibur II needs to pick up at least three charge counters before its worth equipping, and thats just not going to happen often enough to justify running it