Nether Mob Idea: Netherling: Deltaling

I enjoy the Nether's amazing Basalt Deltas and I thought why not add a new mob equipped to survive this harsh and beautiful landscape. So I created the Deltaling, this mob is about 1 2/3 of a block high and uses its long legs to conquer the rugged terrain of the Deltas and its head is coated in the white volcanic dust. This creature can run as fast as a player and easily climbs hills. The Deltaling can swim through lava for 5 seconds before taking fire damage. If  a player gets within 10 blocks of this creature it will run away from the player until it is around 15 blocks from the player it will then turn around and run straight at the player going slightly faster than usual. If the player hits the mob it will retreat and reattempt its attack, if the player does not hit the Deltaling the mob will ram into the player and the keep running until it is 15 blocks away then it will repeat its attack. This mob has 10 life and deals 2 1/2 heart points of damage. When killed it will drop 1-2 bone 0-1 basalt. To wrap it up the Deltas need a mob to really complete the biome and with your help we can do just that.

Concept art:

Flames are animated

Crimson Shroomling 

Warped Shroomling 

Withered Strider 

Soul Skull 

Magmaling