forgotten realms mtg commander deck Tiamat [Dungeons & Dragons: Adventures in the Realms] including the rule Adventures in the Forgotten Realms

If the player's Treefolk are safe, they can boost their board state even further with a titanic Finale of Devastation to push more damage than any deck can handle

I believe that White-Black decks will still want Sorin in this slot

Vampire Nighthawk Rarity: Uncommon TYPE: Creature SUBTYPE: Vampire Shaman CMC: 3 Mana cost: USD: $0.23 EUR: 0.16 TIX: 0.03 EDHREC RANK: 1727 (2/3) Flying Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) Lifelink (Damage dealt by this creature also causes you to gain that much life.) Vampire Nighthawk Rarity: Uncommon TYPE: Creature SUBTYPE: Vampire Shaman CMC: 3 Mana cost: USD: $0.25 EUR: 0.00 TIX: 0.00 EDHREC RANK: 1727 (2/3) Flying Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) Lifelink (Damage dealt by this creature also causes you to gain that much life.) Vampire Soulcaller Rarity: Common TYPE: Creature SUBTYPE: Vampire Warlock CMC: 5 Mana cost: USD: $0.17 EUR: 0.05 TIX: 0.03 EDHREC RANK: 15350 (3/2) Flying This creature can't block

Positions marked in red are the starting ones, positions marked in green are the "spare" ones

This makes prowess best used in decks with few creatures but multiple cheap spells that also replace themselves by drawing additional cards