9-cost Charlotte Linlin is great for removing a Character from play and gaining a Life card, whereas 9-cost Monkey D.Luffy draws you a card and has the Rush attack to either KO a rested Character or go for an aggressive Leader attack
Note that it gives more than just creatures hexproof, and getting hexproof yourself as a bonus isnt something to ignore
3 Spore Frog And Kami Of False Hope Are Creature-Based Fogs Spore Frog and Kami of False Hope fill similar slots
Each creature you control has "Whenever a mana ability of this creature resolves, put a number of +1/+1 counters on it equal to the amount of mana this creature produced
If your buddies want you to play kitchen table with them, ignore all of this format business and just ask them to help you build a deck
For a good partner look no further than the lizard familiar from Commander Legends , Kediss, Emberclaw Familiar