DH: In exploratory design, before getting too deep into deckbuilding and card design, we brainstormed what games offered the most for what gameplay we wanted with the decks as well as being the more commonly known storylines among the audience
Yes, it can get you the extra turn and generate the card advantage that can inevitably get you closer to a bonafide win condition, but it still can whiff, too, and many times just delays dying by a turn
Serra Avatar You already have more than the usual 20 life in EDH, and you usually pay seven mana for a 20/20 (or at least a 15/15) in a slow format
In that deck, thats for drawing cards, as removal fodder for Rite of Oblivion and Ruthless Lawbringer, or to make my creatures nigh-on unblockable with Shadow Alley Denizen
Going on a journey and facing evils beyond your understanding and power, while doing a lot of quests along the way
The token will cease to exist after Szat's Will resolves