Counter Cascade (Casual)

The goal is simple: Have Master Biomancer and Animation Module in play at the same time. So long as MB is on the field, the Servos created by AM will have at least two +1/+1 counters on them - and in doing so, trigger AM again, so you can create another Servo... all you have to do is put one +1+1 counter on anything, and you can tap down all of your spare mana and create a 3/3 creature (or bigger, if MB has any counters of his own) for each!

Most of the rest of the deck is dedicated to getting a +1/+1 counter down to start the cycle while spending as little mana as possible, so as to leave the most mana open for making Servos. Bond Beetle and Benthic Biomancer each cost only one mana, and since they'll get +1/+1 counters from MB, they'll start the cycle with added benefits - Bond Beetle can put its token on MB, making everything that comes afterwards even bigger, while Benthic Biomancer loots from having the +1/+1 counters placed on them - without even having to pay mana to adapt! Chasm Skulker can let us trigger the cycle for no initial mana investment every single turn so long as we can still draw a card for maximum possible Servo generation. Zameck Guildmage allows us to turn our masses of boosted servos into card draw if need be, and can also act as a backup cycle-starter if we can't get our Master Biomancers online. Aquastrand Spider and Zegana, Utopian Speaker give us ready access to Reach and Trample, and Aquastrand Spider can make our Master Biomancers stronger with Graft (which in turn makes everything we summon thereafter stronger). Contentious Plan is a cheap cantrip that can pay off big if we have lots of buffed Servos. And finally, Simic Charm and Leyline of Anticipation allows us to protect our combo from removal while having extra utility if removal isn't a pressing concern.