PvZ 3 mechanic idea

As I partly mentioned in the PvZ 3 idea instead of plant leveling I thought you could unlock abilities that you could bring in a level to give you a slight edge (max of 2-3) with a restriction

• rain cloud: creates a puddle in a tile of your choice first one is free after that it costs 50 sun and has a 20 second cooldown
• Coffee bean: gives a plant double attack speed for 8-10 seconds 75 sun and a 25 second cooldown
• tile turnip: create a random tile to benefit the plants first one is free after that costs 25 additional sun and gets an additional 5 second cooldown.
• frost cannon: launches a massive ice block at the closest zombie and 2 other random zombie targets freezing them for 5 seconds than chilling them for 7 seconds costs 100 sun and has a 45 second cooldown
• windstorm: pushes all zombies by 2 tiles and stunning them for 3-5 seconds cost 25 sun and 40 second cooldown
• hammer: deal medium damage to a zombie of your choice has a 45 second cooldown
• solar jackpot: gain 100 sun first one has a 20 second cooldown others have a minute cooldown 
• tacobility: give a plant a permanent boost based on its role attacker: 15% faster attack speed defender: 15% additional health Support: 15% bonus effect. First one is free second one costs 50 sun otherwise costs 75 sun and has a 30 second cooldown 

Than to balance it out (and I love unpredictable moments) the zombies gain a random benefit during the level so plants are not too strong but cannot trigger until after the first flag so players have time to prepare (also before the level players are aware of the ones that are in play (up to 5 at random))and can only happen either 2-3 times in between each flag. (2 if there is a natural effect 3 if there isn’t)

these are different than affects like meteor rain or water surge because this only benefits the zombies

flashbang: 4 random plants are stunned for 5 second’s 

Acid rain: plants in the area of the rain deal half damage have 30% lower damage and take double damage for up to 30 seconds

Heal bomb: health bombs drop down on random tiles healing zombies or repairing damaged armor parts

heavy wind: zombies in the first three tiles are boosted forward

cursed armor: a random zombie gains x3 health but moves 75% slower

smoke screen: the entire screen is filled with fog for 12 seconds

Grave ambush: graves spawn and if graves are already on the field zombies spawn from some of those graves

Screendoor wall: a screen door zombie spawns in all lanes

Flood: random tile(s) become flooded

animal swarm: a swarm of zombie animals spawn

Brain moon: all zombie move and eat faster for 6 seconds 

darkness moon: all zombies in the first 5-6 Columns transform into random non-boss zombies (can only occur after the second flag:

Skeleton ambush: 3-5 random skeleton zombies types spawn from out of the ground

Frosty winds: chills all plants in that lane for 8 seconds and 

cursed banner: summon a cursed banner zombie in 3 random lanes

Rocket barrage: 3 rockets deal heavy damage to 3 random plants

solar drain: the player loses 50-100 sun

tidal wave: all plants are pushed 1 tile back and all zombies are pushed 1 tile forward

Time rush: the game moves at x5 speed for 10 seconds