
Corpse Cobble | Instant | | As an additional cost to cast this spell, sacrifice any number of creatures.
Create an X/X blue and black Zombie creature token with menace, where X is the total power of the sacrificed creatures.
Flashback {3}{U}{B} (You may cast this card from your graveyard for its flashback cost and any additional costs. Then exile it.) | Ravenna Tran
2.0 LSV

Siphon Insight | Instant | | Look at the top two cards of target opponent's library. Exile one of them face down and put the other on the bottom of that library. You may look at and play the exiled card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell.
Flashback {1}{U}{B} | Livia Prima
2.5 LSV

Bladestitched Skaab | Creature | Zombie Soldier | Other Zombies you control get +1/+0. | Dave Kendall
3.0 LSV

Ludevic, Necrogenius | Legendary Creature | Human Wizard | Whenever Ludevic, Necrogenius enters the battlefield or attacks, mill a card.
{X}{U}{U}{B}{B}, Exile X creature cards from your graveyard: Transform Ludevic. X can't be 0. Activate only as a sorcery. | Ryan Pancoast
3.5 LSV

Shipwreck Marsh | Land | | Shipwreck Marsh enters the battlefield tapped unless you control two or more other lands.
{T}: Add {U} or {B}. | Jonas De Ro
3.0 LSV