Show your enemies as much mercy as they would show you. Surrak, the Hunt Caller Illustrated by Marco Nelor Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
It is perfect in every way
For the most part, the left side of the dungeon is going to be the most important one to progress through as it represents the most aggressive path of the dungeon and the one that generally is going to kill opponent's the quickest
But this fast mana is more than worth discarding a card if you can exploit this mana to play something like Chalice of the Void or Minsc & Boo, Timeless Heroes ahead of schedule
Much of my brewing is built around just be boring, so I am less planning to do anything tricky with Warp like flickering
Phyrexian Altar works very well with all the card draw in the deck, letting you sacrifice rats and make mana and draw cards before Verminister brings the rats back to do it all over again