Almost went out with a lampshade on his head. Thought better of it.
Update history
Update 1.2.11
▲ Strength change: 1 → 2
▲ Trait added: Armored 1
▼ Brain cost change: 1 → 2
Update 1.4.14
▼ Health change: 3 → 2
Strategies
With
Conehead has an average stat ratio of 1/1 per brain. However, due to its Armored 1 trait, Conehead needs to take 3 damage at once, instead of 2, to be destroyed. He takes 2 attacks that do 2 damage to be destroyed, and he also nullifies anything that does 1 damage, such as Template:PvZHLink, Puff-Shroom, and Sour Grapes' ability.
Against
Unless you have these cards below, you have no other option but to sacrifice a plant or two to take out Conehead.
Cards that cost 3 sun and can take out Conehead in one attack (Solar heroes can use them on turn 2 by having their Template:PvZHLink alive after turn 1):Muscle Sprout, Zapricot, Vanilla, Mixed Nuts, Whack-a-Zombie
This is only if Conehead did not have his health boosted, though.
Gallery
Conehead's statistics
Card
A Conehead with 2/3 and the Frenzy trait
Conehead attacking from the zombie hero's point of view
Conehead attacking from the plant hero's point of view