Three main ways: going wide with tokens and an overrun or Coat of Arms, draining the table with Gray Merchant of Asphodel and aristocrats triggers, or grinding opponents out of resources through endless recursion until they cant keep up
For one black and one white, this is a 1/3 creature that gives you the ability to pay one blue and two colorless to copy creature cards you discard
The Gitrog, Ravenous Ride wants to sacrifice creatures saddling it and keep swinging at opponents
: Until end of turn, target noncreature artifact you control becomes an artifact creature and gains flying
Aurelia is probably the best Commander to take advantage of extra combats
its head is like a distorted human skull with an enlarged forehead, and the small eye sockets are where its antennae come out, which is something I've long done with some of my own arthropod creature designs