Cheap dig like Impulse, Anticipate, Index, Confounding Riddle, Quick Study, plus deeper engines (Memory Deluge, Dig Through Time, Drawn from Dreams, Flow of Knowledge) increases the hit rate on Knowledge Pool or a tutor ( Vedalken Aethermage / Step Through / Treasure Mage )
You could also just run Group Hug with things like Howling Mine and Font of Mythos forcing all your foes to draw and lose life while you gain more and more life
Its beneficial enter the battlefield can be triggered twice, whilst its downside is negated as both sides of Ayara get rid of it before opponents have a chance to attack you
Then the Sapling is a 2/5 will attack as a 5/5 with indestructible
Almost as a portent for what was to follow, Wheel of Potential's flavor text declares, "The wheel has only one sure output: chaos"