As I often explain in my Budget Commander articles, every time I build a rough draft of a deck, I make sure I have a certain amount of mana, interaction, card advantage, etc
Then put that card into your hand
If any card only really does something if the rest of what youre doing is working perfectly, theres a good chance post-sideboard games, when things get scrappier, are not the time for it
Low-cost characters (Captain Hook, Forceful Duelist and Goons, Maleficent's Underlings) can do much the same thing, running interference as you prepare
10 Shroofus Sproutsire is a Simply Elegant Snowball Commander Instant Army, Just Add Pump Spells When players think mono green stompy, they often think big-mana commanders like Selvala, Heart of the Wilds or landfall creatures like Rampaging Baloths
Over on Arena, if you play Historic Brawl, you are no doubt tired of playing against the Etali, Primal Conqueror deck