If you left Kaladim because of slow XP, then you must have missed every other TLE server and the first 5-6 years of the game when it first came out.
Leveling is the easiest it has ever been on a TLE by a large margin. It's essentially at least double xp full time on TLE at the moment compared to Fallen Gate/Stormhold. @Sixgauge. I will personally help you level faster buddy, don't work; just ask.