Sapphire depicts intellectual, inventive, and creative souls, such as Aurora, Judy Hopps, and Hades
I'll give the edge to Tarkir, mostly because at the time I was bummed out that I missed out on Kamigawa, and Shards of Alara seemed really cool as a three color set, so Tarkir was like a combination of aesthetics and concepts that I missed out on
Effective +3/+1 and trample is a strong boost for just 1 mana, and most of it sticks around from the Monster role token it produces
Back Bahamut, Warden of Light (As this saga enters and after your draw step, add a lore counter.) I, II - Wings of Light - Put a +1/+1 counter on each other creature you control
A pared down selection of cards will be available in a Starter Collection and Beginner Box aimed at new players, with boosters for the more enfranchised crowd