Here are some types of cards youll need: Spells that add +1/+1 counters, including spells that proliferate like Courage in Crisis and Spread the Sickness
Turning all your creatures into mana dorks sets up some explosive turns, especially paired with greens big card draw spells like Last March of the Ents and Rishkar's Expertise
Once you start hitting your stride, though, Inner Fire will generate much more mana, giving you one red mana for each card in your hand
and, even rarer, anthropomorphic versions of famous planeswalkers
Its not powerful on rate, only being a 2/2 for two, but it can have a big impact in very specific situations, from destroying a Heart of Kiran to stopping the Saheeli combo
I dont think thats asking a lot