If you cut the lifegain theme almost entirely, Aetherflux Reservoir and Test of Endurance are no longer win conditions, although that starts to get into rebuild territory
Emerald Collectors payoff to become a 4/4 for 3 mana seems underwhelming when you consider its conjuring one of the most powerful artifacts in the game, but I guess you dont have to use the Mox Emerald on this blue creature
Filled to the brim with cantrips, draw spells, burn spells, and everything else in between, Spellslinger decks reward you for casting as many spells as you can in a turn, generating some amount of value while doing so
A unified force, they are revered for their lightning-wielding fighters, expert beast riders, and commitment to their clan
For just five mana, you can give all your Elves indestructible until end of turn, saving them from any number of board wipes that your opponents might be holding on to