Fire Cross Whenever Seifer Almasy deals combat damage to a player, you may cast target instant or sorcery card with mana value 3 or less from your graveyard without paying its mana cost
Additionally, it has both vigilance and menace, and it makes the owner draw a card and then discard a card whenever they attack, but more importantly, it reads "Whenever you draw a card, Zombies you control get +1/+1 until end of turn." This MTG card combos exceptionally well with Graveborn Muse, as it can grant players the ability to draw a lot of cards each turn, then making Zombies get +1/+1 for each of those cards via Temmet
The Black Dawn is a free tutor each upkeep for a loss of life, and that's potent in a 40 life format
Among the base sets releases is a 2-Player Rival Box
Mana Curves in Different Formats Mana Cannons | Illustration by Sidharth Chaturvedi While theres no strict rule, your overall game plan and your deck's archetype highly influences the composition of your deck's mana curve