The ShiftstonedEternal Power Calculator is a deck-building tool that visualizes your odds of drawing enough Influence and Power based specifically on the cards found in your deck.
You can sacrifice Vodakhan and/or Talir at any time while comboing once you hit the 12 unit limit, and you have Reclaimer in the market too. I usually sacrifice Vodakhan when the timeout warning starts, and that gives me enough time to end the destiny chain and play Reclaimer.
You would have only 4 Devour and 4 Dark Return that would not destiny, but you have extra draws from Friendly Wisp, Temple Scribe, Talir's Favored (which I assume you cannot skip).