Compare it with Arthoria the Saber: she has comparable cost, same Swift and Durable keywords but also has Legend (+1 to lowest facility almost always), Enduring (the more times you play it, the better its damage/cost ratio) and Far sight (high wall/tower/token increasing or even self-paying). Lord of time doesn't have any of that but he has a Mage keyword. That could be useful if Lord of time would be a gems-only card but since you should spend recruits to play it... yeah. +1 magic or +10 gems and 100 damage for 80/80 gems/recruits is not so good compared with +3 lowest facilities, 95 damage and 27 stock (270 to token counters, 54 tower, 81 wall) for 72/72.
I guess Lord of time should have Enduring (15) or cost like 17/17. Thoughts?