Attacks can do all sorts of things, Trainer and Supporter cards are incredibly varied, sure
All the fun of playing Magic without all the confusion of having to make decisions
Cards like Fauna Shaman and Survival of the Fittest offer ways to get the exact creature you want into your graveyard, while cards like Stinkweed Imp, Underrealm Lich, Golgari Grave-Troll, and Hermit Druid can help with the graveyard filling
We can double legends, as the original artifact and the copy have different names, abilities that have as their cost sacrificing the permanent one can be repeated turn after turn, avoiding limitations and creating loops that wouldn't be possible in other settings
In addition he is a card draw engine as we draw a card whenever a creature we control deals combat damage to a player and having a build-in protection (hexproof as long as hes not attacking) and Reach make him durable and effective
Lastly, as with many Pokmon with suffixes, ex and EX Pokmon tend to come in high rarities , but lets save arguments such as holo vs