(Enter the first room or advance to the next room.) Whenever Barrowin of Clan Undurr attacks, return up to one creature card with mana value 3 or less from your graveyard to the battlefield if you've completed a dungeon
This card is an absolute beast
Then amass Orcs 1. Amass is a returning mechanic that was originally introduced in War of the Spark, and it creates something called an Army token
Its as simple as sending your preferred attacker to the Active Spot and then using Mirage Gate, Energy Retrieval, and the needed Energy card you can attach to a Pokemon per turn to have your attacker with the needed Energy cards to attack
Like Mark Gottlieb encountering Notion Thief on Inside R&D, you will one day come across a Magic card that stumps you and leaves you doubting if you know this game at all
fusion monster, Titania, Voice of Gaea requires another creature to become super powerful