There is a neat trick you can do as well if you have a creature with negative power
Today, I focus on cards that help a typal deck in a generic way, like Cavern of Souls and Coat of Arms, and not on a specific creature type like elves or goblins
Pick Your Poison Pick Your Poison does a lot for just 1 mana, especially in multiplayer where mana rocks are common
(It deals combat damage before creatures without first strike.) Inspiration from Beyond Rarity: Uncommon TYPE: Sorcery SUBTYPE: - CMC: 3 Mana cost: USD: $0.22 EUR: 0.13 TIX: 0.03 EDHREC RANK: 10043 Mill three cards, then return an instant or sorcery card from your graveyard to your hand
One is a blue-white spirits deck with Millicent, Restless Revenant
Since the Blinkmoth it becomes has both flying and infect, all you need is a few efficient pump spells and you can attack for a fatal ten poison damage as early as turn two or three