They should allow you to spend your tokens on swapping out to your Reserve items. A lot of strategies and such only thrive because you can't risk fully committing to their easily available counter, and by the same charge, a lot of items then get nerfed because they're too powerful as a counter and then would require an even sillier counter than that. Just let people pay a token to swap, simple as that.

Plus there's all this tech already in place to convey a swap happening without being clunky. They can easily generate the voice lines for Scotty and June, have a little pop-up in the corner if you want, or open the scoreboard and you can see the most recent swaps with their little contestant heads and team symbols next to them.