The Spell Card "Jump Number" and the Trap Card "Last Stand" allow you to choose monsters to Special Summon from your Extra Deck, making it possible to immediately deploy a Link 3 monster from your Extra Deck
Convoke (and other tap an untapped creature you control costs) are most common, but some decks can also harness affinity, improvise, sacrifice costs, conspire, and other creature-dependent discounts
If you win the clash when Marvo attacks, you can cast a spell for free from your hand
But suffice it to say that the door to the Porcelain Gallery enters play alongside Dollmakers Shop, and can be opened later
When a trading card game's cards stop being treated as playing pieces in a game, and start becoming collectibles first and foremost, that's when prices start to get really silly
And this will definitely lead you to victory over the enemy