This is a body, a source of ramp and potentially some extra gas
The set of three promos, called Ponies: the Galloping, will be available on hasbropulse.com for $50 on October 22, 2019 (US and Canada only), with the proceeds specifically benefitting Seattle Childrens Hospital
Jitte will have a nice high floor while really helping your game against the treacherous aggro matchups
You laugh more
You want to have 4-power creatures on the battlefield as soon as possible, and having Llanowar Elves on turn 1 into a 4-power 3-drop helps immensely

Main Set Irohs Demonstration Source | Raven Eagle Source Earth Kingdom Protectors Source | Professor Zei, Anthropologist Source Bommerang Basics Source | The Boulder, Ready to Rumble Source Cruel Administrator Source | Fire Navy Trebuchet Source Avatar Destiny Source | Bumi, King of Three Trials Source Earth Kingdom Jailer Source | The Earth King Source Fire Nation Palace Source | Jasmine Dragon Tea Shop Source Destined Confrontation Source | Earthbender Ascension Source Combustion Man Source | Combustion Technique Source Ember Island Production Source | Fatal Fissure Source Fire Nation Raider Source | Sandbenders Storm Source Jumpstart Commander Bundle Booster Fun Scene Box Appa, the Vigilant Source | Earthshape Source Fire Nation Turret Source | Kataras Reversal Source Sokkas Charge Source | Swampbender Source Magic: The Gathering | Avatar: The Last Airbender is scheduled to release on November 21