If you want a second opinion on your wording, compare your text to official cards that do something similar
Attack with Gwenom, and you can loop the Cultists effect endlessly with Mortuary to drain every other player of all their life
In fact, I've shown my love of black EDH cards on several occasions (Maga!) The first and best thing that black brings to the table is an unparalleled ability to tutor up cards
This makes sense from an evolutionary perspectivein the hunter-gatherer era, losing an importance resource could mean the death of you and your tribe, while finding a secondary resource likely just means an increased period of abundance
We think the aspirational synergies that Arena of Glory offers with cards like Scion of Draco and Quantum Riddler are things that lead us to preserve it over the Elder Giant
Kindred Charge can also be useful, especially since youre going to exile your token copies anyway