A 4/4 that has two abilities
That's crucial if any board state becomes stalled out, ensuring an Elf army isn't rendered useless
The Venomous Slash attack also Poisons , technically dealing 80+ damage
As an additional benefit, if the card it draws into is a basic Fighting Energy, you are able to attach it to one of your Benched Pokmonproviding a small bit of acceleration
The vast majority of cards in the starting pool are Vanilla Units, and the ones that aren't have very simple and straightforward Abilities
Being able to loot from the command zone works very well with tutors that put the card on top of your library like Vampiric Tutor or Mystical Tutor, and you can easily set combos like: tutor for a reanimation spell, discard a fatty, and reanimate it the same turn