Doran, the Siege Tower The following things are all true at the same time of Doran, which if you look at nearly every other conceivable Magic card, seems impossible: It shows something about the world it belongs to, it has an intriguingly "different" mana cost and p/t, it demonstrates a never-then-before-seen ability with very few words, and finally the flavor text effortlessly ties the smile-inducing ability, the nature of the character, and its application to our real lives
As someone who had already developed a Doran, the Siege Tower lifegain deck by the time Commander 2015 saw print, Karlov was an easy include and still in the deck as a strong battlecruiser creature that also acts as removal
Giada, Font of Hope For years, building an Angel deck felt cool in theory, but way too slow
In the meantime, you can gain tempo advantage and start to hammer them down
Weaknesses: The top end is great, but the early drops kinda suck