Even when youre not sideboarding between games, many cards and mechanics use the sideboard as a toolbox
For example, if you put the reflexive triggered ability on the top of the stack with the job select ability below it, the reflexive triggered ability will resolve first and allow you to attach the Equipment to a Samurai you control
It can even be played proactively against Smugglers Copter before its even been Crewed
Boros decks that go wide when playing equipment tend to reward sharing, rather than stacking, so hes a little at odds with established play patterns
Tempt with Discovery Ramp is good, and getting any land from your deck is even better
When an attack connects with your Leader, the top Life card goes into your hand, so taking damage refills your resources rather than just lowering a counter