Plants vs. Zombies 2 - Dark Ages (Nights 1-20)

Played using Bluestacks on version 6.2.1, because modern versions are an absolute mess.
I will using no powerups, no zen garden boosts, no premiums, and only level 1 plants outside of a few exceptions.

Night 1 0:00
Welcome to Dark Ages! Like the night levels from the first game, sun does not fall from the sky. Sun-shroom is a great sun producing plant and it generally the best option for decent part of the game. I personally like using Twin Sunflower more, so outside of this will I will generally continue using it.
Night 2 3:15
Puff-shroom is somewhat useful. It's definitely not as good as it was in the first game.
Night 3 6:30
No comment.
Night 4 9:39
Hypno-shroom is fun.
Night 5 13:06
Jesters are extremely annoying because they severely limit what plants you can use. Fume-shroom, which you just got is one of the plants that is able to hit them. Overall it's pretty good, it's quite similar to Laser bean.
Night 6 16:52
Fume-shroom is quite cost efficient so it works very well in last stand levels.
Night 7 20:00
Sun Bean is pretty good actually. It can give you a big boost in sun quickly, so it's especially great in expansion levels. Also note that you can stack the effect with more Sun Beans.
Night 8 23:42
Note that using Hypno-shroom on zombies with the Sun Bean effect will not make the immediately drop sun.
Night 9 26:39
Evil potions are only used like twice which is pretty funny. I'm honestly not sure what exact buffs they give.
Night 10 30:36
I really like the sound from the Gargantuar hammers.
Night 11 35:35
Wizards are annoying. Feel free to use a Cherry Bomb if too many plants are turned into sheep.
Night 12 40:38
Cool level. Use plant food to refresh the Puff-shrooms.
Night 13 44:24
Make sure you deal with the graves at the back. Pea-nut is worse than Wall-nut, and worse than Peashooter.
Night 14 48:05
Another cool level.
Night 15 53:04
No comment.
Night 16 57:06
Kings are annoying. Luckily, you get Magnet-shroom which deals with them nicely. Outside of this world and Neon Mixtape Tour though, it's not too useful.
Night 17 1:01:27
No comment.
Night 18 1:06:31
No comment.
Night 19 1:10:07
No comment.
Night 20 1:14:40
Place plants as soon as you get them on the conveyor. You get a boosted Magnet-shroom for this fight, so you can plant and then shovel it back up to basically spam the plant food effect.