The rules for building a deck are rather simple and easy to understand, but beyond that, players should also keep in mind a few tips that will help them build good decks
Spawn of Mayhem Spawn of Mayhem can be cast for as low as 3 mana with spectacle, and you get a 4/4 flying and trample creature
I have placed it very high up on my own list as well, but I am not sure whether I really think it is better than Veil of Summer or Force of Vigor, given that it is just a dumb, head-through-the-wall type card and the others are very specialized but devastating interactive cards
Some aspects, like blues affinity for countermagic or greens affinity for efficient creatures, have remained the same
Suffice to say, after Dhoulmagus and Piedmon, Kefka is probably my favorite of the lot