What about making possible to use multiple alpha/omega cards in sequence at the start or the end of the turn?
Like if you have 2 First Blood in hand, you could use them at the start of the turn in sequence, instead of just using one and discarding the other...
Probably you will ask yourself : There would be some broken combos?
The only broken combo that would become more broken is one that already exists: Binate Rupture-Interdimensional Graft.
Other Alphas/Omegas combinations are kinda quiet
Alphas and Omegas are few so it doesn't take very long to see which cards combination can be broken.
Multiple binate rupture can be nasty but they're heavily situation dependant.
Other alphas and omegas would be quiet cards.
Age of ascension Alphas and Omegas are:
Brobnar:
-First Blood (Alpha)
-Gargantes Scraper (Alpha)
Dis:
-Unlocked Gateway (Omega)
Logos:
-Binate Rupture(Alpha)
-Eureka (Alpha)
Shadows:
-Sucker Punch (Alpha)
-Swindle (Alpha-Omega)
-Little NIff ( Omega)
-Heist Night (Alpha)
Untamed:
-Duskwitch (Omega)
-Lucilla (Alpha)
-Bumblebird (Alpha)
-Gravid Cycle (Omega)
What are the possible broken combos?
Brobnar: None.
The only "combo" on the first turn would be summoning Gargantes Scraper and then using First Blood, that would deal just 2 damage. So definitely not broken.
Dis:None (at least you will be able to use double unlocked gateway to unward opponent's creature and then destroy them, but that's not broken)
Logos:
A good combo would be eureka and then binate rupture (of course you have to be lucky and don't archive it) so you get a key with 2 cards, but that's situational because you have to be lucky and you wouldn't want to use binate rupture when your opponent has 3 or more ambers (and that's a common situation).
Double Binate Rupture and then Interdimensional graft is broken but even single binate rupture with interdimensional graft was broken,things gets a bit worse but just a bit.
Shadows:
A sucker punch and a swindle make you gain 4 amber and at best destroy a power 2 creature, but you still used 2 cards and your cards on the field can't be used.
Decks with more than 1 Swindle don't exist so multiple Swindles won't be a problem.
Heist Night + Swindle can be broken, but most of the time it won't because Heist Night is a bad card that's difficult to use.
Swindle+ Little Niff? good but not broken
Untamed:
A maybe broken combo would be summoning a Glimmer to bring back from the gy another Glimmer and then use Nature Call on one of them to recycle Nature calls and Glimmer, but that can happen with just one Glimmer and a Nature Call, so things don't change so much.
Glimmer+ Bumblebird: You summon Glimmer to bring back Bumblebird so now your Glimmer is a power 3 creature. So broken.
Gravid Cycle + Dusk Witch: it's just a regrowth,nothing broken.
I'm not considering Mavericks because they are very rare and even though the only broken combo would be Swindle+ Binate Rupture and i don't know if there are decks like this.
Overall i think there wouldn't be a deterioration of the game, but an improvement if there would be an Alpha-Omega rule change.
P.S. Also Garfield seems interested in a change to how Alphas and Omegas work!