I am curious to hear how this works out for you. My gut reaction is that it is really unfair. By drafting a voucher, I would effectively be drafting 1 or 2 cards more, per voucher than everyone else at the table. I think if you are going to do this, then the cards on the voucher need to be incredibly narrow, so that they only work together and not in any other decks. Otherwise the vouchers become the best draft pulls in the cube, and I think it could reduce diversity.
If you feel that the midrange strategies need more help, you can provide it, and remove the payoffs of more busted/fast mana-things. When I feel the format is getting stagnant, I pull out "packages of cards," and add in packages. I actually have a separate binder with different cube "packages" in it. Like a side board for the cube.
If the moxen are overpowering what you want the cube to do, add more hate or briefly remove a couple.
Maybe Eldrazi "invade" the cube for a month or two, and then disappear. I have actually been considering that myself lately, and I would remove a set of lands, and put pain lands and other colorless lands in their place to help support the eldrazi. Go down on other artifact creatures, or maybe pull a handful of cards from each color, and create an eldrazi section. 3 cards from each color, and 1 from each guild, is 25 eldrazi support cards.
Lately, my cube is visiting Ravnica and features multi-color (gold cards) heavily. I have added 20 new multi-color cards (1 per guild and shard) and more rocks that produce any color mana, and pulled 4 cards from every color and switched a few artifacts.
Also, I pulled out black hand destruction, and added in aggro instead. That way my drafters never quite get comfortable, but I don't have to over-haul everything.
If you want your cube to play differently, change it around and nudge your drafters in that direction, but again, I am supper curious to see how the vouchers work out.
Either way it is cube, so feel free to experiment, just listen to your drafters, and keep the play experience fun.
You might consider strengthening control to help push out some midrange decks.
If you feel that the midrange strategies need more help, you can provide it, and remove the payoffs of more busted/fast mana-things. When I feel the format is getting stagnant, I pull out "packages of cards," and add in packages. I actually have a separate binder with different cube "packages" in it. Like a side board for the cube.
If the moxen are overpowering what you want the cube to do, add more hate or briefly remove a couple.
Maybe Eldrazi "invade" the cube for a month or two, and then disappear. I have actually been considering that myself lately, and I would remove a set of lands, and put pain lands and other colorless lands in their place to help support the eldrazi. Go down on other artifact creatures, or maybe pull a handful of cards from each color, and create an eldrazi section. 3 cards from each color, and 1 from each guild, is 25 eldrazi support cards.
Lately, my cube is visiting Ravnica and features multi-color (gold cards) heavily. I have added 20 new multi-color cards (1 per guild and shard) and more rocks that produce any color mana, and pulled 4 cards from every color and switched a few artifacts.
Also, I pulled out black hand destruction, and added in aggro instead. That way my drafters never quite get comfortable, but I don't have to over-haul everything.
If you want your cube to play differently, change it around and nudge your drafters in that direction, but again, I am supper curious to see how the vouchers work out.
Either way it is cube, so feel free to experiment, just listen to your drafters, and keep the play experience fun.