Goldvein Hydra card is a great payoff for generating significant amounts of mana, but it also plays great in multiples since every time your opponent kills one, you can pump those treasures into casting the next
With blank cards you can test out expensive cards like Sheoldred, the Apocalypse and Snapcaster Mage to see if they work in your deck before committing to buying them
However, the deck's core style is still fairly approachable - and it can run away with wins against other starter decks
The gameplan with the RMS Titanic is pretty obvious
It is also a great punishment for anyone using lots of treasures, clues and other artifact tokens
Blasphemous Act Rounding things out, we have Blasphemous Act, a card I see at least 1.5x per game