I personaly think light is the weakest element. When the best creature is the flown weapon, there aren't a lot of options.
The dragons are one of the strongest (if not that, most durable AND immune to early Otyugh's, creature control, poison, Paradox, etc.)
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cards, and Rays of Light have been known to piss people off in the RoL + Hope + Fractal decks. I do agree they need a few more creatures to be recognized, however...