Welcome Decks are a familiar concept to some MTG players, although somewhat of a newly-revived one
Mantis Rider Mantis Rider pushed the rates up as a 3/3 with flying, vigilance, and haste
When Hei Bai leaves the battlefield, put its counters on target creature you control
Smitten Swordmaster can act as an incredibly effective finisher, often dealing 5-6 damage or more, and gaining you just as much life when played as an adventure
Smaller creatures looking to even the odds or larger creatures seeking to extend their dominance might exploit the Giant Growth spell
This strategy is a double-edged sword, as misplaced over-aggression in Commander usually ends up with you drawing off the top of your deck very quickly and leaving you open to taking big damage yourself if you're not careful