Tolarian Terror
Creature — Serpent
This spell costs 
less to cast for each instant and sorcery card in your graveyard.
Ward 
(Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)
Afterward, a number of treatises on sea serpent morphology were swiftly revised.
5/5
イラスト：
Foundations#167コモン英語