Cactsassin (PvZH)

Cactsassin is a premium legendary plant fighter in Plants vs Zombies Heroes and a member of the Wild class. It costs 7 Sun and has 2/4, along with the Bullseye trait. Its ability allows it to, when played, gain 1 Strength for each Health the Plant Hero had missing.

With
Cactsassin can be a powerful Plant, just like Magnifying Grass and Poison Oak, which can be easily used to 'ambush' your target and punish careless players by playing it on a vacant lane to wreak havoc on the Zombie Hero. However, this sneaky Cactus has another powerful trick up its sleeve - and hence the Legendary rarity. Though modest in health and requiring your Hero to have taken plenty of damage to reach full potential, it can gain crazy amounts of Strength and negate Superblocks - it has the nasty Bullseye Trait. With the right timing (good times to play it once your Hero has taken some damage are when the Zombie Hero recently overcommited by spending all his Brains on Zombies and/or when he has few or no cards in hand), this can net you plenty of games against opponents who don't see it coming.

Counters
This Plant is another formidable weapon, however there are of course many ways to counter it. There are two main ways to pacify a Cactsassin - even before it is played. The first way is cover all lanes with Zombies so it can't land a hit on your Hero. However, these Zombies should preferably be buffed or in Gravestones, since there are many ways for Plant Heroes to clear a path for Cactsassin. Gravestones are best since no amount of damage can destroy them prematurely. However, do note that Corporal Cactus can have Grave Busters to undo this. Antoher way could be to play some Sumo Wrestlers or Pogo Zombies, since the Sumo Wrestler can move Cactsassin away from vacant lanes while the Pogo Zombie can bounce the dangerous Cactsassin. The second main counter is to simply be cautious and defeat it with Tricks. Remember that Cactsassin, if planned properly by your opponents, can easily defeat you, so you should save Brains for Tricks. You can Bounce it, use Locust Swarm or Rocket Science, or Deadly Zombies where necessary. Be exceedingly cautious against Wild Heroes in general too, knowing how unpredictable they can be.

Trivia

 * This is the third Legendary plant in the Wild class.
 * Its name is a fusion of 'Cactus' and 'Assassin'.