Thats where this Alakazam deck comes in
One of the best sets to do that with is Outlaws of Thunder Junction There are a number of things that makes Outlaws so great for new players: It has 51 Legendary Creatures across a range of colors and themes, from straightforward builds like The Gitrog, Ravenous Ride (which asks you to saddle with big creatures), to more complex builds like Taii Wakeen, a red and white trickshot deck that draws cards for dealing precise amounts of damage
I remember seeing a pretty minty one sell a year or so ago at something like $1100 although I have seen a PSA 9 sell for around 620
Additionally, Phanpys bright color scheme is at odds with the muted winter palette of the background, creating an amateur Photoshop effect
Wake the Dead Ive been championing Wake the Dead for a while now and will continue to do so until people realize its one of the best mass reanimation effects in all of Commander
If your factions are primarily monocolored, you have to make a decision about what two-color strategies you're going to push (usually this is done through allied colors or enemy colors) and then make sure the factions that overlap those color combinations are synergistic