Go to a card shop on game night and see if anyone wants to trade or buy your cards
Costing just three mana, this Sephiroth is barely more expensive than staples like Zulaport Cutthroat and Blood Artist
But the synergies with Bloodghast dont stop there
While a triple blue casting cost can be restrictive in some decks, making any player draw as many cards as you are willing to pay mana for is great
Otherwise, you have to wait until you open wildcards in packs or get them as a reward for opening packs: Every six packs you open gives you either a rare or mythic wildcard
In a pinch, Thalia can fight as a 2/1 with first strike, but players mostly use Thalia for her ability, and if one Thalia is killed off, another may be cast for cheap