Maybe a Destiny Summon? At the start of your turn, if you're under 4K LP, your opp has higher LP and more combined cards in their hand, field and extra deck than you do, you get to special summon 1 monster from your Extra Deck, ignoring the summoning conditions. If you're playing a rank 4 spam deck, it might not do you much good with all the Xyz monsters without effects being summoned without materials. Heck, even at that point, a quasar probably wouldn't get you back into the game.
Or maybe they can make specific borders for monsters that can only be special summoned that way (new of course, not preexisting), and put them in the extra deck. They shouldn't be able to be special summoned at all by effects, not even those that ignore summoning conditions, except through their own summoning conditions (which of course are not effects), which don't have to be the same (preferably only one summon of 1 Destiny monster per duel. They can be stronger as your advantage dwindles further down). Only downside is if you lose the duel before your turn comes around again, it won't matter.
Edited by user
| Reason: Not specified