5 cards of rarity rare or higher, 4 uncommon cards, 5 common cards, 1 land
Start from the 100-card total, subtract your single commander, then fill the 99 using the ratio above: lands first (36-38), then the ramp, draw, and removal cores (roughly 10/9/9), then 7-10 win conditions, and the rest as synergy and flex slots
If the outside person chooses one of your creatures, consider briefly why you didn't fully explain to the outside person what's going to happen, and ask them to choose a creature you don't control
Lifelink Leverage: Pair token generators that create creatures with lifelink with cards like "Ajani's Pridemate" or "Soul Warden." Attacking with lifelink tokens not only deals damage but also gains your life, fueling these synergistic effects