Phantasm Spiral Assault allows you to win the duel if your Phantasm Spiral Dragon destroys three or more effect monsters by battle while equipped with three different Phantasm Spiral equip spell cards
Not only do you get extra mana to pump the spells, but you also get to double the spell or ability cast
Just believe in the heart of the cards
Its very much not a fun strategy to play against
Sanctuary Warden is a card Im pretty interested in running in a deck like Shalai, Voice of Plenty, where generated +1/+1 counters can be turned into card draw and chump blockers, while shield counters can do the most work under a blanket of hexproof
As a sorcery, you may pay the mana cost of a locked door to unlock it.) Enchantment - Room Moldering Gym When you unlock this door, search your library for a basic land card, put it onto the battlefield tapped, then shuffle