This isn't a real rule, but then, you can't revive part of a fusion monster in the real game, either
Like Fusion Monsters, some Synchro Monsters need specific materials, other can use more general materials
In fact, it was watching Wizards employees struggle at the employee Prerelease that led us to rethink our approach to complexity, something Matt Place and I originally called the New World Order (here's my article on it)
TL;DR: 10 Best-Selling Pokmon Cards from Mega Evolution For those who want to jump right in, here are the top-selling Pokmon cards from the Mega Evolution set on TCGPlayer so far
Bloated Contaminator trumps this card in terms of mana efficiency (spoilers), but Grafter provides card draw and ramp, something poison-based decks are severely lacking