Teyo, the Shieldmage Teyo, the Shieldmage is a good card that grants you hexproof for proliferate decks since it only has a minus ability and would come in with 10 loyalty
Relentless Assault variants tend to be win-more and they dont typically make their way into Cubes, but there are some Sacrifice synergies going on here with the morbid cost reduction and the +2/+2 and haste to give this card some wider applications
Egyptian mythology has a lot of easily recognized iconography, but the stories and characters are much less known by the majority of our players, which made top-down designs, especially of characters, very difficult
You can (and should) sign your own Autograph Book to get things rolling
For example, Sokka has three separate cards, with Tenacious Tactician having access to Jeskai (blue-red-white mana) coloured spells, where the previous two versions (where the story is concerned) only have access to two colours of mana