Oftentimes, one of the ways to make a mythic rare is to take an effect we do and blow it up to a size we've never done before
In terms of speedrun the hardest part is probably energy cards and the luck you need to get the cards you need unless you stick to the starter decks
Cards like Talrand, Sky Summoner add a 2/2 flyer to every instant and sorcery you cast, protecting you from attacks and eventually swarming into a win condition if left unchecked
And is it compatible with TCG 2
A real misfire in this deck, but a potentially good commander for its own deck filled with creatures with Modular, or in the 99 of a Zabaz, the GlimmerwaspZabaz, the Glimmerwasp deck
A Dragon with Dragon Fangs gets +1/+1 and trample (very few Dragons have trample naturally)