C Common Chaos Infinity X TRAP Change as many Defense Position monsters on the field as possible to face-up Attack Position, then Special Summon 1 "Meklord" monster from your Deck or GY, but its effects are negated, also it is destroyed during the End Phase
Veil of Summer is a must-haveit protects your threats, blanks counters, and even draws you a card
Do you need the newest cards for a tournament in the next few weeks
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)
In Vintage I play crimped Beta power, miscut duals, miscut Forces of Will, miscut Mana Drains, miscut Brainstorm, etc