The O simply means the film has been oriented, or stretched, during manufacturing, which changes how it behaves
Alesha is a three drop 3/2 with first strike, nicely on curve
Jeskai Cycling: The Jeskai Cycling deck already has a lot of the best cycling cards and cycling payoffs, but a few big additions can be made, especially Decree of Silence and Decree of Annihilation (if you are feeling especially mean), which are the most powerful cards in all of Magic that you can cycle for free with Gavi, Nest Warden
With cards like Fury, Wrenn and Six, Fire // Ice, and more making life very tough for one toughness creatures, Delighted Halfling is much more durable than something like Noble Hierarch or Birds of Paradise