This seems great, but unfortunately it doesn't work, thanks to rule 607.2a: "If an object has an activated or triggered ability printed on it that instructs a player to exile one or more cards and an ability printed on it that refers either to "the exiled cards" or to cards "exiled with [this object]," these abilities are linked
If you think of a typical curve in Wizard Devotion, we play a one-drop on Turn 1, a double-blue two-drop on Turn 2, and a triple-blue three-drop on Turn 3, which means if we play a Master of Waves on Turn 4, our devotion will be seven, giving us a massive 16 power split across eight bodies for just four mana
The loyalty ability, however, doesnt give me a warm fuzzy, since I like my graveyard a great deal
It was designed to be so unbeatable that Square-Enix treated the means by which it was beaten to be exploits that were then patched out of the game
However, it is decreasing in price as we speak which hopefully means there's still a chance to see this price drop