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Basically if the original card is legal, the promo is also okay to be played in that format

Having a source of damage sitting in the command zone regardless of what else the commander does is a difference-maker

You can only use this effect of "Kozmo Tincan" once per turn

Special Summon from your Extra Deck, 1 LIGHT "tellarknight" Xyz Monster by using this face-up card you control as the Xyz Material, also you cannot Xyz Summon other monsters for the rest of this turn

If you go to hit, it's okay, but the effect of 2 is his Spell Trap bounce, so it's weak as a check and almost exclusively for offense

So if you're looking for basic Pokemon to use in your grass type deck, I would definitely give this Ledyba card a hard look