The value chosen for X doesn't directly affect the number of charge counters Engineered Explosives enters the battlefield with, but it does let you pay more mana and thus spend more colors of mana to cast it
And as we approach the release date of the new Phantasmal Flames expansion, the Pokemon Company has unveiled a set of free promo cards
Tarot Card Deck Sleeve Tattoo Design A Tattoo Featuring A Grizzly Bear
That said, the cards I loved the most from Yugioh were the big juicy 'pay life' cards, stuff like Mirror Wall could be devastating (better than Mirror Force if you have a reasonable board!), Solemn Judgement was insane, both were cards people in my meta hated because you paid life (they never noticed that Mirror Wall was a Trap card or something idk, I had played Magic before at least), these were among my favorite cards, at least I got my Judgement really easily, they thought it was a terrible card, I mean, half your life for a better Force of Will, who would play THAT poop tier card (I obviously would lol)
Sacrificing other permanents adds counters to creatures, making them scale fast