Here is Fanart New Champions League of Legends by a graphic student named Natalie Pellmann. The new General is called Petra – The cosmic shieldmaiden includes both biography and skill sets:
Petra was found as a child inside a falling meteorite in Freijord. It is unclear what her purpose was when she came to Runterra. Petra was brought up by the Warm Blood and Ornn families when they mined the meteorite to find precious metals.
Petra now wandered around Freijord to protect the travelers from the cold with his fire and guide the roads through the blizzard. Despite his benevolence, Petra will not hesitate to use all of his cosmic powers to protect her friends.
Passive: Intrinsic – Petra can turn up to 2 turrets destroyed into fire signals that allow all allies to increase their movement speed while approaching the beacon and increasing their recovery when under the beacon. The fire will turn off if Petra goes too far away.
Q: Petra shields herself for a brief duration then can recast Q to deal AoE magic damage. A % damage taken while shielded is converted into bonus AP on the recast.
W: Petra hurls a shield to an ally, it can bounce up to 2 nearby allies. The allies’ normal attacks that receive a shield will deal additional magic damage.
E: Petra summons a meteor that falls after a moment, stunning and dealing magic damage to all enemies in the area of effect.
R: Petra strengthens himself, boosts recovery and resist all control. Petra’s normal attack during this time deals extra damage to all nearby enemies.