Remember its not about the cards you play, but how you play them
First, Walking Ballista needs to have at least two +1/+1 counters on it (by paying four generic to cast it, ideally), and Heliod, the Sun-Crowned needs to be on the battlefield
You have to vomit up rainbows to tutor up anything remotely high-impact, and you still have to pay to cast the card later
However, it may only be cast this way if it has a foretell cost in exile
Your favors will include exclusive items such as a promo card and an oversized spindown life counter
Rakdos can do +1/+1 counters, and if we add back Rakish Heir and pop in other ways to accrue counters, this becomes another reliable removal engine alongside of (or instead of) our deathtouch engine