As we mentioned, this format has been reinvented around Commander to improve the popularity of this niche often forgotten format
Adding mana equal to the number of anything gets out of control quickly, especially when anything is a card type that's notoriously hard to remove in multiples
If you want the bigger how do I balance my interaction packages picture, go read How to Build a Commander Deck in MTG (Without Cutting Lands First) after this and tune your counts from there
Three-colour builds open powerful cross-element rewards if supported by reliable fixing
A Pokmon Tool card, Survival Brace is attached to a Pokmon like any other Tool, and as long as the Pokmon has full HP, if it is to be Knocked Out by damage from an opponents attack, its not Knocked Out and instead remains on 10 HP
If you lack enough creatures with the proper creature type, you can utilize changelings like Irregular Cohort to get the card draw trigger