PSA: Don't assum your teammate will participate in a fight without knowing their cd/resource/positon
If the teammate is: too far away low in hp low in mana/energy just used all their cd csing at tower with huge wave(especially early game 2 wave=losing or winning lane) have no way of getting into the fight(for example blocked by a wall and has no flash/dash to get over it) don't have the ability to duel(for example dont expect a support to 2v2 enemy carries with u) taking other important objective(smiting drag/baron, taking down tower/inhib etc)
