Tavern Brawler Play from exile decks benefit from Tavern Brawler not only exiling your top card but also buffing your commanders power
The cost reduction applies only to generic mana in the total cost of blue spells you cast
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owners control with a -1/-1 counter on it.) Illustrated by Karl Kopinski Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
Not only does it have potential, it becomes more viable the more powerful Red spells come into print, so its one to keep an eye out for when future sets drop
Sorcery Color tag templates(None) Mechanized Warfare If a red or artifact source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 1 instead
Narset of the Ancient Way is probably the best option: while she incentivizes casting spells over cycling them, her minus ability allows you to draw extra cards with the option to discard them to damage your opponents creatures, or to keep them and cycle them later