If you have to put Swadloon in the active Pokemon spot you'll want to use Double Razor Leaf a majority of the time since it has the possibility of doing more damage than Gnaw but if the defending Pokemon will be knocked out by 20 damage or less you'll definitely want to use Gnaw instead since that damage is guaranteed
if you find it lacking per your luck after a few games, it's a good pair of cards to consider removing in favor of more Zacian and Zamazenta
You could, theoretically, cut these up yourself and turn them into 99 old Pokmon cards
But with only 15 Transformers cards in total, to leave at least half of them out of any themed Commander deck seems like a net negative, particularly when the missing cards break up the most natural mechanical and flavor pairings, like using Blaster to enable Arcee and Jetfire
Eventually, adding another present doesnt increase her enjoyment and simply gets lost in the clutter
12 Charizard & Braixen GX (Secret Rare) $75.01 An Unexpected Partner For A Usual Suspect Charizard is frequently among the top chase cards in any set it appears in, and tops the charts in Champion's Path with an incredible Rainbow Secret Rare