The best thing you can do in almost every situation is USE YOUR SUPER! This does two things. It kills, or stops a lot of enemies all at once, AND it generates orbs of light for other players to then get their super and use it. You can effectively chain supers through out an entire strike. Intellect works in multiple ways. The more intellect you have, the faster your super builds. But it also means the more orbs you drop when killing with your super. It ALSO means how much super energy your teammates get from picking up your orbs. Certain gear with specific perks, as well as some guns, can aid in the ability to charge your super. Guns are fun, but supers lay waste to anything that moves. Have fun guardians.