It might seem obvious, but if we have 3 opponents, a 3 damage to all of our opponents will net us a whopping 9 mana in our second main phase
Garland, Knight of Cornelia Serving as functionally a Dragon Rage Channeler on one side, Garland also presents a solid early body, and in the late game gets recurred as a significant flying threat
As long as you arent putting too much stress on your colored mana sources or harming the engine of the deck, any plan you come up with should be reasonable at least
Ral, Monsoon Mage / Ral, Leyline Prodigy Built to replace Baral in Modern Storm shells, Ral, Monsoon Mage brings cost reduction into red and smooths the mana base
Cosmic Spider-Man I know Im supposed to mention Cosmic Spider-Man, but it just feels so forced, like Infinite Guideline Station from Edge of Eternities
At any other time, you may have any number of cards in hand