Destroy target nonland permanent
Take the Initiative I made room for most of the best initiative cards to broaden the dungeon theme, with an eye towards trying to get one of these cards on the battlefield first since Undercity provides the strongest room abilities
Goblin Guide [Extremely Fast and Early Pressure] Most red decks thrive on aggression, and Goblin Guide is one of the strongest red creatures in MTG for that purpose
For example, lets say you have Jhoira, Weatherlight Captain in play and cast Karn, Legacy Reforged
Im not sure if the equipment deck will finally work in this set, but Freya looks to be an incredibly powerful part of it
If the top X cards of your library don't contain a creature card that doesn't share a creature type with a creature you control, you won't get to put a card into your hand