Red Learn and Lesson Cards (Five Learn Cards, Two Lesson Cards) Learn Academic Dispute is a narrow card but can help kill a flying attacker if needed
I remember looking at vanilla creatures that weren't particularly good deals, required obscene amounts of colored mana, and had names that seemed like they'd been crafted by pulling scrabble letters out of a bag blindfolded and thinking this was one of the best things I'd ever seen
Artifact - Spacecraft Eumidian Wastewaker Whenever this creature attacks, you and defending player each discard a card or sacrifice a permanent
Of course, it can also attack well and defend itself using the Psyshot ability
Usually, I would recommend people to either play 1 copy of Cao De or 1 copy of Zhang Yuan, either one or the other
The advantage of playing a mono colored deck is that you will have zero problems getting your one color