These deck lists are completely free and can either be used as a base for you to make a deck or as an example of a type of deck you are looking for help building. All of the decks here are relatively budget.
Commander:
Atraxa, Praetor's Voice
Muldrotha, The Gravetide
Kaseto, Orochi Archmage
Surrak Dragonclaw
Standard: will be coming soon!