Innistrad: Crimson Vow

Thirst for Discovery | Instant | | Draw three cards. Then discard two cards unless you discard a basic land card. | Dominik Mayer

Geistlight Snare | Instant | | This spell costs {1} less to cast if you control a Spirit. It also costs {1} less to cast if you control an enchantment. Counter target spell unless its controller pays {3}. | Anato Finnstark

Hero's Downfall | Instant | | Destroy target creature or planeswalker. | Chris Rallis

Rending Flame | Instant | | Rending Flame deals 5 damage to target creature or planeswalker. If that permanent is a Spirit, Rending Flame also deals 2 damage to that permanent's controller. | Olena Richards

Vampires' Vengeance | Instant | | Vampires' Vengeance deals 2 damage to each non-Vampire creature. Create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.") | Chris Cold