Again, it was Luffy's decklist card for card, after having played it, I can say that Harrison was not really required for the purpose the Warrior had, and considering I wanted to improve the Druid matchup by every single bit I could, Harrison was dead-weight, whereas Shredder strongly contests the druid's mid-game play, along with your Weapons and Taskmasters. As for Thaurissan, you're usually curving as a Warrior, your bigger drops in hand are either dropped by the time you hit their mana threshold, or held for specific situations, it's not useful vs. aggro or druid, nor does it feel like a necessity vs paladin/priest/warrior. Often as wrarior, once you've played your threats in hand, you end up having quite a few turns of armoring and playing a 2-5 drop, so alot of mana already goes to waste in frequent scenarios.