yugioh cards that can attack directly Mermail Abyssgunde AP03-EN005 – Super Rare Rapid Warrior - Yugipedia

With that said, in this guide, well go through what madness is, how to use it, and how many cards have the ability

It can be Special Summoned if the player controls at least one "Kashtira" monster to then banish the top 3 cards of your opponent's Deck face-down by banishing one "Kashtira" card from the player's Deck

There are certainly cards that work fine with both and it can be done but you will either have stuff that does nothing with one half of your engines or you will have a pretty underwhelming Sneak Attack compared to what it can do

The value will be coming from modern booster packs, singles, and PSA graded slabs