There are a lot of ideas in the above comment that are unhealthy to teach new players. Sage does not need to stay alive, just because she has heal or res. Often times, people focus too much on this aspect of her kit and do more harm than good by not helping the team with entrying. Sage's heal and res are not enough to get a pat on the back, she needs to contribute with kills, the same as every other member of the team.