The more Technology you research, the more diluted your Combat deck gets and the more difficult it is to discard Combat cards from your hand. Technology soon becomes a hindrance to winning battles, whereas it should increase the chances. For some time I’ve been wondering how to make the Research order more attractive. Staying with the videogame theme, by researching abilities, your units certainly don’t get weaker.
So I suggest the following variant to encourage use of techs.
For every different Technology acquired, you increase your initial Combat hand limit by 1, with the exception of tech cards that you place in your personal play area.
That applies to different techs, not multiple copies of the same tech. So by researching either Mind Control (one copy in the Tech deck), Psionic Storm (2 copies) or Increased Carrier Capacity (3 copies), you would still increase your Combat hand limit by 1 for each.
Any type of counter (depletion tokens if there are enough) may be placed on the Faction Sheet just above the Combat deck as a reminder of how many extra cards can be kept in your Combat hand.
Example: the Overmind investigates Spawn Broodling and after shuffling both cards into his Combat deck, he places a counter above his Combat deck reminding him he can now keep a Combat hand of 7 instead of 6. Later he investigates Sunken Colony and places another counter on his Faction Sheet, so his Combat hand limit is at 8 now. Later still he investigates Parasite. That doesn’t affect his Combat hand limit because it’s placed in his personal play area, not shuffled into the deck. Then he plays the Aggressive Strategy Event card so his Combat hand limit is increased to 9, although he doesn’t place another counter on his Faction Sheet, because the visible card is itself the reminder.
Exception: 3 technologies are replaced after use (Nuke, Increased Reaver and Carrier Capacity). If used you don’t lose the counter adding to your Combat hand, but if you research the same tech later, you can’t get another token.
So the longer the game progresses, the more your Combat hand grows and the better your units become, definitely in line with the videogame.