yugioh red dragon cards Hot Archfiend King Calamity [SHVI-EN097] Ultra Rare Red Nova Dragon | Card

Would Into the Night be playable if it cost 1 less mana (and left a rectangle)

This does what you want intuition to do but much more effectively, at a very slight cost of having less other utility

"In 30th Celebration, fans can look forward to discovering an all-new card rarity, Futuristic rare, which will feature vibrant new visuals illustrated by the renowned Japanese artist YOSHIROTTEN

If just glancing at card images isn't enough, the following details should help you notice the small things that separate the real from the fake

Deck Diagnostics offer players the opportunity to have the game evaluate and help build a stronger Deck