Who Pilot Mecha Kingdom Garen? (Warring Kingdom Garen?)

Mecha Kingdoms represents the continuation of the Warring Kingdoms story, where champions pilot giant mechs called avalons.

Vercentia Kingdom, which is protected by MechaKingdoms Garen, who is also its warlord.

So in The same Timeline we had Two Garen? (Warrior & Pilot?) or Just the same Guy who Can Cut a Mountain before but Retcon now.

as I check again he dont had that feat anymore.(The lore Change Cut the Mountain out)

Is He a Pilot or Diffrent Garen in New Generation? (Same Timeline)

Plot Hole?