Tank starts to kite him by making very big circles while others stay in the middle. Grak creates dark particles from behind while he gains movement speed, attack-speed and +3k base attack damage.
Everyone gets "purge" skill animation on their feet, Krit (boss gets the same animation too) becomes invulnerable and chases a random player (can change his target) and does damage by staying close to you. Player can kite Krit/blue if needed.
Starfall on every player, everyone should spread across the arena to prevent starfalls from stacking at same areas. By moving around most of the damage can be avoided.
Everyone should “Hold Position” after they position themselves. All move controls are reversed (Phase can start with either normal or as reversed controls). You can move by using target spells on player or boss to get closer to a targeted unit, "Feeling Dizzy Yet Fools!"
notifies you that controls are changing each time. Boss casts mass purple orbs through his body and sends them randomly at a 360° angle. The tank should maintain max melee range to avoid getting hit by all of the orbs (max melee range). Note:
You can self E or T as shadow shaman, click the spell and use on your animated hero avatar.
Spread and whoever got “Dark Screen” should press H, after dark is gone go away from that area because "Mini Grak" will appear at your spot to perform a instant death 180° cleave attack "3 second later screen returns back to normal". Again 5 seconds later a message "Grant me... your death!"
will show up and Grak will perform same small animation again, and this time on all players will spawn (you must run away from that spot when you see the text) you will get hurt and stunned. If a player moves during the effect of the dark screen, will take rapid damage each mini step they attempt. If your move speed is enough after screen comes back to normal, instant run from that area OR move while still dark 1 second earlier before screen turns back to normal if your ms is low.
Notes: Put some distance from each other and smoke the boss in case healer gets dark (healer and tank have to stay close in case healer gets dark screen and still can heal the tank by using hero avatar portraits).
The tank should go right to the entrance and slowly walk to the left side, as “!“ yellow marked lines appear on the ground 2/3 second later and the phoenix will shoot those marks. Touching the phoenix itself causes instant death but you can walk through fire lines: you will still take damage, but it's not lethal. Healers should stay close to the tank while all damage dealers to the left side to make healers' job easy and give some space for them.
All players should stick together to divide gained stacks among the team. “Fireball” bounces between players and gets "Solar Purification" total 30x (increases magical damage) and each stack you take more damage from that.
Notes: My advice is use your skills or consume items a bit later when its starting to hurt. Warrior Y aoe "damage taken reduce" example, stoneskins. Healers job will be more easy.
Sun appears on the left side, all damage dealers should focus on killing it, otherwise, twins will fully heal (in 20 seconds after the sun appears). Everyone takes damage during this phase, there are many flying fire bolts going towards the sun which deal damage on contact with players. Tank needs to be a bit more right side of arena to take less hit from fire bolts while healers can focus more on DPS to keep them alive.