Not sure if I should also put in a card that creates colourless tokens as well like Retrofitter Foundry What would you say
Marisi being a 5/4 for four mana is a solid rate, and with a big enough board, you can connect with every opponent, goading all their creatures
At the beginning of each end step, if you gained 3 or more life this turn, create a 3/3 white Bird creature token with flying and "Whenever this token attacks, target attacking creature gains flying until end of turn." Legendary Creature - Bird Noble King of the Oathbreakers Flying Whenever King of the Oathbreakers or another Spirit you control becomes the target of a spell, it phases out
Still, for raw, explosive speed, nobody does it better
Along the same lines, your opening hand should form around the cards that work together, rather than a linear curve