What is the weakest, laughable monster in SK? It's the chromalisk. So here are some new monsters that mights give them a bit more bite.
CHROMALISK FAMILY
All these monsters should have elemental variants.
All monsters will uncamoulage and telegraph their attack before attacking.
All chromalisk monsters can camouflage until it attacks or it is attacked. They wll try to recamouflage as soon as possible..

Scaled ram - a small hammerheaded chromalisk wth a shielded head and vulnerable backside. It rotates its shielded head torwards the nearest knight, and periodically charges at the knights like a trojan. The charge causes damage if it hits (3 hits, like a alpha wolver) and it will stun itself if it hits something.

Catalisk - a chromalisk with a lightly longer tail. From time to time, it grows an elemental orb and flings it at knights like a long range version of a chromalisk's basic attack. Except it the orb is a bomb that explodes after a while. They can also fire a fast moving elemental orb from their mouths (looks and moves like one of the orbs used to light candlesticks). They like to keep their distance, but luckily, they aren't very fast.

Chromlista - a frog. It hops around much faster than most chromalisks, and they have the ability to ddge very quickly like a devillite. They prefer to keep their distance and reel in knights with a fast and VERY long tongue and gnaw like a zombie. The tongue is harmless, so it is advised to let them grab you, and whack them before their bite. On the other hand, they do like to pull you into hazards and into crowds.

Wreckard - a slow, armored turtle a large spiked elemental tail. From time to time, it will smash its tail down like a lumber. Unlike the lumber, its tail does not have to attack in the direction that the body is facing. It can also emit an odd squeak (bomb like attack) which does no damage but stuns knights

Synapsid - a very rare, smooth, black catlike creature with oversized paws wearing blue armor. It is slow and tends to stay back like catalisks, but also have the ability to dodge. Their health is also rather large for their size. When it appeares, all chromalisks will release a small freezing mist like ice cubes whenever they are hurt (ability cold blood). From time to time, it hisses, increasing all beast movement and attack speeds.
When synapsid is hit, it will fire a stream of blue flames in a random direction, which then curves towards knights like the T3 flamethrower gunpuppies. The stream causes light shadow damage and will freeze knights.
Lastly, when the synapsid is defeated, its image will flicker and vanish like a hologram being turned off, leading to the rumors about the real Arcane Salamanders.

Drake/Wyvern/Dragon Wings - Flying chromalisks which move like greavers. They carry, camouflage and drop monsters and knights randomly, usually on other knights. If the dropped monster hits the knight, it will cause damage depending on the health of the monster dropped. It also uses the monster that they are carrying as a shield (the carried monster takes the damage). They can also sometimes take a monster off the screen and bring back a random monster.
They also sometimes land and do a zombie breath attack.

Wolvers have been pretty weak too, especially after the nerf. Here are two monsters based off of Snarbolax.
OTHER BEASTS

Tremortoda - A furry worm with a spiked tail, which digs underground leaving a trail of temporary spikes. It digs in a straight line, and pops its head up from time to time to look around and change directions. It then starts digging again, leaving its body vulnerable until it finishes pulling its entire body and its tail underground. The longer you leave it alone, the longer it gets. It is advised to deal the final blow on the head or tail; otherwise, it will split into two smaller worms.

Brambloid - A walking poison bush with a vulnerable snout sticking out of one end. It shoots thorns in random directions.
It can also teleport like a wolver; and will cause piercing damage if you walk into one.