Sneaky little elf!
Elven Cutthroat is a neutral card that costs 3 mana, has 3 speed and 1 health at level 1. He's one of the neutral melee monster that has the Sneak ability. It's like the contrast to Sand Worm, high speed but low damage, but they do share the same ability, Sneak. If you're a newbie, he's one of your choice as a back line killer. Elven is best used with the fire summoner Malric Inferno. Elven lacks melee damage so Malric is the perfect summoner for him. In the Bronze rank, it's like you have a high chance of winning a low mana cap match with Malric-Elven combo.
The only downside is he doesn't gain additional abilites at any levels. But I bet he will be your buddy as a newbie.