#228 is especially notable for its Hyper Rare status, making it one of the rarest Pokmon cards in the set, and colorful illustration, which really makes Charizard ex look dynamically powerful
Features exclusive artwork of Gysahl Greens by Andrea Montalto
If you have two non-Hydra creatures with Wildwood Scourge's ability (perhaps because they were mutated using the Ikoria: Lair of Behemoths mutate ability), putting a +1/+1 counter on any non-Hydra creature you control will cause the two abilities to trigger each other indefinitely
Umbreon ex's powerful Onyx attack lets you take a Prize card, worth the investment
So, after a battlefield sweeper has destroyed all the creatures, you can cast Samut with flash on another players turn, untap, and cast something with an attack trigger that you get to take advantage of right away
In mono-black in EDH, for example, where enchantments are hard to handle outside of a few tools like Feed the Swarm, being able to reanimate a Meteor Golem is nice in case of an emergency