Spiders, snakes, bats and bugs all crawl, slither and swoop under Blex's anthem.
Sets your commander and theme, then adds about 25 cards that fit plus 20 lands. You fill in the rest.
The top 40 of 151 cards that fit

#7,325$0.41Julia Vasilyeva

#5,123$0.33Eric Deschamps

#1,708$0.22Oleg Bulakh

#7,630$0.71Trevor Claxton

#4,636$1.05Ron Spencer

#4,930$0.45

#6,985$0.28Loïc Canavaggia

#618$19.99Warren Mahy

#13,291$0.40Slawomir Maniak

#2,002$0.41Yongjae Choi

#6,074$0.32Helge C. Balzer

#11,572$0.22Daren Bader

#9,984$0.29Justin Sweet

#7,040$26.13Alexander Ostrowski

#13,406$0.24Andrew Mar

#5,151$0.36Simon Dominic

#1,570$0.28Mathias Kollros

#20,603$0.07Franz Vohwinkel

#26,558$0.18Eric Deschamps

#5,005$3.00Svetlin Velinov

#4,896$9.35Takotto

#10,469$0.29Igor Krstic

#14,574$0.13Kev Walker

#3,136$2.80Jessica Fong

#20,372$0.18Chase Stone

#10,756$0.26Helge C. Balzer

#2,801$0.37Adam Paquette

#19,984$0.27Darrell Riche

#7,908$17.81Slawomir Maniak

#17,187$0.35Jeremy Jarvis

#16,045$0.28Dave Kendall

#23,311$0.12Nicholas Gregory

#7,125$8.75

#25,040$0.05Jason Felix

#20,178$0.18Maxime Minard

#7,919$0.35Wisnu Tan

#13,157$0.32Greg Staples

#15,620$0.19Abz J Harding

#17,972$0.16Raymond Swanland

#15,238$0.18Thomas Chamberlain-Keen