If you want to target an enemy hero while using her ult, just tap on the ult skill icon multiple times to target the enemy right away. As an alternative, you can hold the ult skill icon and adjust where to hit the ult. Be careful about distancing yourself and the enemy. If you go start Feathered Air Strike too far, enemies can quickly retreat until the ultimate is complete. However, you can move a bit near the enemy to hit them, but not to get attacked right away when the ult is in motion. [6] X Research source Since her cooldown of the ultimate can take some time in the early levels, only use Feathered Air Strike when appropriate (when you can hit the enemy hero completely).
For her battle spell, you have a myriad of selections. Using Flameshot could help to continue damaging enemy heroes, or applying Flicker can help her ultimate range if enemies escape. If you think enemy heroes will be an issue in later parts of the game, choose Sprint or Purify. [10] X Research source
While Magic Worship is another great choice, this talent is overkill for Pharsa since her skills can quickly make burst damage to squishy enemy heroes.
Another known combo is using her three main skills in succession (1 - 2 - Ult). This is good for mid-range attacks on enemies. Use her first skill to mark the enemy, then stun the enemy with Energy Impact, and finish it off with Feathered Air Strike. [12] X Research source