Pull rates are, in my admittedly too-small sample, horrible
Aside from the joining of many legendaries, which is almost a mechanic in itself, and some classic returning keywords like convoke, March of the Machine has four main mechanics
The deck itself is based on Flip Summoning, which is a huge weakness in the modern era because most decks are able to destroy a monster without ever attacking and making it flip face up
Card Type: Effect Attribute: DARK Card Level: 4 Monster Type: Dinosaur ATK: 1850 DEF: 950 Card Number: SR04-EN015 Card Text: Up to twice per turn: You can banish 1 monster from your Graveyard
Don't bother sending inexpensive cards for grading
(If a permanent with a stun counter would become untapped, remove one from it instead.) Reach Petrifying Meddler's triggered ability will resolve before Petrifying Meddler does