Summon Ojama Knight or Ojama King as early as possible. They have enough defense to stall Mai's strongest monsters and with 0 attack Mai cannot use Amazoness Fighting Spirit to boost her attack.
After that just keep stalling until you deck out. Ojama Blue and Jar of Greed helps you get Ojamas out of your deck, King of the Swamp helps you search Polymerization in your deck. You can also use these cards to help fusion summon Ojama Knight earlier, if you have not yet.
There can only be one effect per skill you stupid moron.
If it's a field spell skill, that's all there is. You can't use a skill that gives a field spell and also allow you to bring that field spell back from the grave. Skills don't work like that in the game.
I have found that this can be good for farming the LDs, but especially Mai, because she is mostly about attack increase and swarming you. But once you get too much more attack points then her, there is not much she can do about it.