Jorogumo, Mistress of Silk

Reach, Silksong {5} (When either player casts a non-Spider creature, they must pay {x} equal to Silksong. Otherwise, they become a 0/4 Spider with Defender and lose all other abilities.)
When a Spider creature spell enters the battlefield, target Land gets a Web Counter. (Lands with Web Counters tap for {c}.)

When Jorogumo, Mistress of Silk attacks, she gains Menace or Infect until end of turn if you do not attack with other creatures.