Blood Moon Ursalunas Season Skill ability reduces the cost of Blood Moon for each Prize Card your opponent has taken, making it easy to build up and turn the tides of battle late in the game
For our Combat subtheme, 27 cards either care about combat damage happening (Descendants' Fury) or buff attacking (Sentinel Sliver)
Within that stack should be no more than four of each card type
A bit of research will also allow you to more or less standardize the price of each bulk set
The way to gain more speed is by, once per turn on the player's turn, causing their opponent to lose life, whether it's from an attack or the result of a card mechanic
Counters are suddenly dead cards, suspend spells are not castable anymore, and waiting for your opponent to make a move stops being an option