This stamp is also only found on rares, mythic rares, and promotional cards, but seeing as those are generally the most valuable cards from any given set, it's a great way to quickly check a card's validity
Ezuris main drawback is his size and inability to regenerate himself, but when your upside is so high, the downside just doesnt seem so bad
Illustration Rares average about $20, Ultra Rares about $19, and Double Rares can be purchased for under $5
Not only are you immune to their mana denial, you have a mana denial plan of your own that the opponent must respect
Ishai, Ojutai Dragonspeaker can get scary big as it gets a +1/+1 counter every time an opponent casts a spell