Ferocious Bellow: 80 During your opponent's next turn, attacks used by the Defending Pokmon do 50 less damage (before applying Weakness and Resistance)
For Master Duel format, I would advise something around 0.62 - 0.70, the reason being that Master Duel decks have the "N/R/SR/UR" tags on the cards, which throws off object detection to some significant extent, so you'll need to compensating by reducing the accuracy coefficient threshold
Here is a practical checklist: Width and height A genuine card sits at exactly 2.5 3.5 inches
The card is basically all-powerful, and Yugi was only able to beat it through wild logic leaps, which included his monsters bouncing their attacks off of one another in order to power each other up
Persist Persist is close to being an all-timer reanimation spell at 2 mana, but the -1/-1 counter matters and targeting only non-legendaries severely limits the types of targets you'd want to bring back
While this Houndoom won't be finishing first anytime soon, it seems a prime contender to maintain a steady value