AI lvl?

[Plight]

lvl 0 = very easy
lvl 1 = easy
lvl 2 = normal
lvl 3 = hard
lvl 4 = idk
lvl 5 = very hard
lvl 6 = god

[sSethia]

Level 0 - Novice
Level 1 - Beginner
Level 2 - Easy
Level 3 - Normal
Level 4 - Hard
Level 5 - Harder
Level 6 - Very Hard

[Marvaddin]

lv 0-1: dont really count. In fact, they have powerful cards, but their quanta flow sucks sooo hard that they are completelly useless.
lv 2: very easy. In fact, I would like to know more about their decks. Are they fixed decks like AI3, or variable ones, like AI5? The single thing I remember is that they are weaker than AI3, so, very easy.
lv 3: easy.
lv 4: variable. It has non biting farms, a several different strategies, including rush decks and rainbow FG killers. Some can be bad match ups, others are not.
lv 5: medium - hard.
lv 6: near impossible. But you can lock and defeat some of them using cards like Hourglass to equilibrate their advantages. Usually, the ones that use fire are the worst ones, mainly because of explosion.

[GG]

lv 0 - weird deck with all pillars and some random creatures
lv 1- randomly generated deck. has 3~4 pillar of certain elements, 5~6 pillars same with the mark.
       other than the pillars, all cards are distinct.
lv 2- half the deck is pre-made. the other half is random.
lv 3- pre-made decks only. the list of decks is available in this forum.
lv 4- depends on who you face.
lv 5- depends on the two elements you face. usually fire and darkness are the hardest with controls.
       water and life are usually the easiest
lv 6- generally very hard even with a fully upgraded deck. 
       depending on the deck you use, some god are really easy while others are unbeatable.
       (example : RoL hope deck has a hard time against ferox and neptune. For rainbow, those two are usually the easiest)

[teffy]

lvl 2 has no rare cards.

lvl 0 - lvl 2 = too easy to play with
lvl 3 = most time easy to win against
lvl 4, lvl 5 = greater threat, lvl 4 sometimes not
lvl 6 = your ultimate enemy
PvP = nice part of the game

[Essence]

Level 0 = great place to test silly things like how Steam Machine and Antimatter/Adrenaline/Aflatoxin interact.

Level 1 = Only good for getting your win/loss ratio up.

Level 2 = Only good for getting enough electrum to play a game vs. level 3.

Level 3 = Great for mindless grinding while you do other stuff.  Decent money if you run a speed EM deck.

Level 4 = Get your rares here.  Scorefarming t50 is solid, too.

Level 5= Only good for testing ideas to see if they're FG worthy.  Better money, score, and rares to be had elsewhere.

Level 6 = The ultimate electrum-grinding fest.

PVP = The reason to keep playing Elements once you've beaten all the FGs.

[Retribution]

Level 0 - No0b
Level 1 - Apprentice
Level 2 - Mage
Level 3 - Sorcerer
Level 4 - Wizard
Level 5 - Demigod
Level 6 - Deity

[Noobslayerkid]

Level 0 - Testing new cards
Level 1 - getting enough electrum for Ai3
Level 2 - ridiculously easy
Level 3 - Boring, once in a while challenging
Level 4 - play these farming decks for rare cards some decks will play an actual deck made to win, and you will lose.
Level 5 - Grind these to sell upgraded cards so that you can beat false gods
Level 6 - Ridiculously hard without the right kind of deck.
Pvp - the only part of the game that's actually fun.