Chaos Jester

Chaos Jester is a Crossover Zombie found in Penny's Pursuit in Plants vs. Zombies 2.

Upon entering the lawn, Chaos Jester hops down the lane, similar to regular Jester Zombies. Every 2 tiles, Chaos Jester warps to a random tile in its column and casts one of 4 Chaos Attacks:
 * Heart Bomb: Chaos Jester throws a Heart Bomb down the lane, which deals 10 bites of damage to the first Plant it hits and splits into smaller hearts that deal 2 bites of damage to Plants in a cross shape around it.
 * Diamond Shot: Chaos Jester summons 4-6 diamonds that fly down random lanes, dealing 3 bites of damage to the first Plant they hit.
 * Club Clash: Chaos Jester throws a spread of 3 Clubs down the lawn, dealing 5 bites of damage to Plants they hit.
 * Spade Stab: Chaos Jester summons a Spade that deals 1 bite of damage to all Plants in a random column.

After taking 1000 damage, Chaos Jester's head pops off and bounces like a bobblehead, and Chaos Jester begins to rapidly teleport to random tiles, summoning a random Chaos Attack after each teleport.

When killed, Chaos Jester throws a Chaos Scythe down the lane and begins rapidly teleporting between the first 2 columns of the lawn. Dealing 200 extra damage to Chaos Jester will cause him to (actually) die and make the Chaos Scythe disappear from the field.

The Chaos Scythe travels down the lane at a Creeper speed, doubling in speed after every tile it passes. Upon reaching 2 tiles from a Plant, the Chaos Scythe begins traveling at a Flighty speed and charges into the first 2 plants to instantly destroy them, then returns back to the Chaos Jester to be thrown again.

Origins:
Chaos Jester is based on Jevil, a secret boss in the indie game Deltarune by Toby Fox, while his abilities are all based on different attacks that Jevil uses during his fight. His Chaos Attacks are based on Jevil's card-related attacks, the Club Bomb, Heart Bomb, Spade bullet, and Diamond bullet attacks. In Chaos Zombie's second phase, he teleports around similar to Jevil's diamond spam attack, where he teleports around the bullet board, launching projectiles towards the player. His final phase is based on Jevil's animation later in the fight, where he rapidly teleports around a general area, leaving behind motion blurs and moving extremely fast, while the Chaos Scyth is based on the Devilsknife from Jevil's final attack, where a giant Devilsknife falls from the top of the screen slowly towards the player's SOUL.

Strategies:
Due to Chaos Jester's high health and many attacks, he can be extremely dangerous if you are not careful. Luckily, most of his attacks can be easily blocked with defensive Plants such as Wall-nut or Endurian, protecting your weaker Plants from damage. Unfortunately, his Spade and Heart attacks cannot be blocked by most attacks, so you may want to stockpile Sun in order to replace your defeated Plants. Infi-nut is an amazing way to block Chaos Jester's attacks as it can block all lanes without putting your other Plants at risk, and causes Heart Bomb to hopefully hit your defensive Plants instead of the weaker ones behind.

Chaos Jester's second phase can be extremely dangerous, as it causes tons of Chaos Attacks to be fired very rapidly. Luckily, this can also be avoided using high-health defensive Plants or Infi-nut's Plant Food ability and shouldn't be too difficult if you have enough attacking Plants to damage him in-between teleports. Chaos Jester's final phase is his most dangerous, capable of easily cutting through your defense if you are not careful. However, this can easily be countered by planting cheap Plants in front of the Chaos Scythe to stall it, and Chaos Jester can quickly be killed using a Cherry Bomb in the back of the lawn to take him out.

Trivia:

 * This is Bobert's first Crossover Zombie, and his second Crossover Wiki page overall
 * The achievement Battle of Legends is based on how Sans and Jevil are both considered the hardest bosses of their games, thus sparking a debate over which one would win in a fight.