Given its wide range of application, it is natural that it finds its way into most sideboards, except for decks that would suffer too much themselves by including it
Once per Chain, during your opponents Main Phase, you can (Quick Effect): Immediately after this effect resolves, Synchro Summon using this card you control
Step 2: Use A Deck Search Effect Every Pokmon deck should have an engine that improves consistency by searching for other cards
Infernal Denizen isn't bad, but I always found light of day pretty amazing
Wrath is pretty brutal for you, I was considering Valorous Stance over the Charm or the Path to give me a modicum of protection against mass removal
Xyz Monsters are very quickly rising to the top, with a much bigger launch than Synchro Monsters