The only issue I see is that Bloodthirster is the only creature to untap
This is basically Rampaging Baloths in the command zone, except these are bigger tokens with a more relevant creature type, and Omnath benefits you if they die
The very best tip I can give you, is any time you draw a card that's useless (actually useless, not you'd rather save it or its too risky or costly to use, but you actually can't play the card at that moment due to its cost being impossible to fulfill), think about how many times you've used that card, versus how many times you didn't want to draw it
Previous examples of the Alpha Black Lotus (the first series of MTG cards is called the Alpha series) had gone for as much as $250K, but this more than doubled the record and the general reaction was of astonishment
The only thing exclusive to these is the extended art treatment
With Enchanted cards only being found in approximately 1 in every 72 booster packs, the chances of getting a specific Enchanted card are even lower