Sunflower

Description
Sunflower is an straight-line AoE skill with strong damage. The skill also deal additional damage on target with  Ivy Poison  debuff, caused by Doom'n'Gloom, Weedwhack , or Thorn Strike

When trained up to Tier 3, upon critical hit, the skill will switch from to Super Sunflower which can build up a stackable buff called  Photosynthesis . Once the buff hits tier 5, it will become  Overflow  buff, allowing Summoner to freely spam Sunflower without any focus cost for for 3sec.

In order to maximize its potent, the build requires the target to stand still in the area of Briar Patch or Flying Nettle, being life-drained by Doom'n'Gloom, being  Grappled , or when Summoner uses the skill from Stealth.

How to obtain
Complete Chapter 5: Disciple of the Hongmoon School

Put two points or more to the rightest branch of Rumblebees changes the skill into Sunflower

Hongmoon Version
It is obtainable via the use of Royal Zen Bean, traded with 5,000 Zen Bean from Dragon Trade Courier.

The Hongmoon version allows  Overflow  duration increased from 3sec to 5sec

Tips
Sunflower suffers when it comes to hitting airborne targets, as the skill will miss. If the mob gets launched ip, you should wait for it to land down first.

Sunflower can be used to break stealth as it can be used without target, provided you can determine the opponent's location.

Rotating Sunflower in-between Doom'n'Gloom, Briar Patch or Flying Nettle, and Power Pounce to maximize the proc rate of Super Sunflower

If there are more than one Summoner in a group, they can help each other to build up Photosynthesis with multiple Doom'n'Gloom, Briar Patch or Flying Nettle, and Power Pounce

Due to a brief pause between Sunflower attacks, it is possible to weave and CN¥ will help maintain focus with Sunflower and Rosethorn and deal extra damage.

Constantly pressing both of the CN¥ and the button will increase the skill input rate during Overflow.