With Choco, you get cards and lands from your library while you attack with birds, so Battle Screech becomes your friend
Captain Sisay can swap out of the less repeatable Time of Need so you can save some money without sacrificing consistency
The 5-Mana cost to proc this massive stat buff can be hard to secure unless players get to ramp their Lands quickly
Theres also a nice fit between Mikes text and the fact that we often refer to cards like this, huge bodies with no other synergies and abilities, as dumb beaters, so I could see the Gorehorn with a blank look on his face, at least when hes not giving the menacing one you see here
As far as Planeswalkers go, Ajani is a great place to start for any player, giving their creatures more power, and the option to overwhelm an opponent in an instant
We Ride at Dawn costs 3 mana and grants your legendary creature spells convoke plus gives you the occasional 1/1 red Mercenary token in case your Commander attacks