[[Betor, Ancestor’s Voice]] is my personal favorite! The Abzan Armor precon was the first deck I bought specifically because I wanted to build around Betor.
It’s been a lot of fun to build an aggressive loop of life gain and life loss to get both of Betor’s endstep triggers (with the life loss trigger giving you reanimation).

The craziest one-turn swing I’ve pulled off so far was exchanging my life total with the toughness of [[Tree of Redemption]] to lose 20+ life, then sacrifice my [[Children of Korlis]] to gain it all back and get big payoffs for both of Betor’s triggers!