Metal Petal is an armored Sunflower. While the metal weighs her down-making her slower than other Sunflowers-she has the added benefit of higher health.
In-game description
Metal Petal has more health than other Sunflowers, but runs slightly slower.
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The Metal Petal's primary weapon is the Metal Blast. With the damage upgrade it deals 8-11 critical damage and 6-9 non-critical damage depending on the distance. It also has a slightly lower rate of fire compared to that of default Sunflower's primary weapon.
The Rainbow Heal Beam is exactly the same as the standard Heal Beam, but it's rainbow colored! It heals faster as well. OK, no that's a lie. It's colorful!
The Rainbow Heal Beam is exactly the same as the standard Heal Beam, but it's rainbow colored! It heals faster as well. OK, no that's a lie. It's colorful!
The Rainbow Heal Flower is exactly the same as the standard Heal Flower, but it's rainbow colored! It also knows calculus. OK, no that's a lie. It's colorful!
Weapon upgrades
Artificial Reload Upgrade
A slightly more artificial reload results in a reload speed increase.
More Metal Shard Ammo
Metal shard surplus results in increased ammo capacity.
The extra health of the Metal Petal allows her to endure damage better making her useful when healing plants near or at the front lines. The Metal Petal's 160 HP (170 HP if upgraded) grants her the ability to serve as a good frontline medic that is much less vulnerable to damage than the other variants and is more resistant to ambushes or "assassinations" made by warping Scientists or mobile Foot Soldiers.
Be careful when skipping around, as your slower movement speed can make you easier to hit. Try to focus on more close-ranged enemies as her weapon has steeper damage falloff than other sunflowers. She is best played on defense as her higher health allows her to hold ground better.
If you are low on health, hide and use the Heal flower or rainbow Heal flower until your health is at maximum.
It is recommended to use the damage, health, and reload upgrades so you can survive longer and deal more damage
In the Gnome Bomb game mode, the Metal Petal excels in holding or defusing objectives, as it is coupled with tanking and self-healing ability.
Against
The most important thing with Metal Petal is to keep up a high damage output to take it out before it can heal too much. A run-and-gun attitude with a mobile DPS zombie like the Imp works quite well, because Metal Petal has reduced movement speed and won't be able to escape.
Also, don't let enemies such as Citron tank for Metal Petal. It is important to prioritize it as it is the healer.
Unlocking (Garden Warfare only)
In order to unlock this variant, the player must reach rank 10 with the Sunflower class. They need to do this by completing challenges with the Sunflower and any of its variants. The player earns a character piece for each rank they level up, starting at level 6 all the way to level 10.