3 noob questions

Three pretty basic questions for you (i've only played acouple of days...).

1) I am in MAN realm and i've noticed that using GOD cards to enhance my MAN cards is alittle bit more expensive and also gives me less % gain and stat gains. I have not tried to enhance a MAN card with DEMON cards yet. Does it matter what realm of cards I used to enhance with? I'm not sure if it was the card(s) in particular that were causing the discrepancy or if the realms also effect the enhancement. Would DEMON cards actually make my MAN cards LOSE % gains and/or stats?

2) I see alot of people buying HN feeder cards. Obviously having just started, and having burned my Holy Powders picking up acouple High Shamans, this seems like a good thing for me to start farming. When buyer is referring to HN feeders, are he/she talking about HNs that they can 4-0 into rares or ANY HNs including normals that were 4-0ed into HNs?

3) I haven't reached this point yet, but when I get my High Shaman to [God Possessor] High Shaman, I obviously want to boost that skill until I can get some HR and above cards. When trying to bump the skill (med boost to man ATK/DEF) do I need to use cards like Shaman (small boost to man ATK/DEF) or will ANY skill (ie. small hit to foe's demon DEF) work as well? Also should I enhance the High Shaman with non-skill cards till FF and THEN lvl the [God Possessor] High Shaman with skilled feeders ONLY to maximize the chance to get to skill level 10, or can I used a mix of unskilled and skilled at will?

#1A: It is not the realm that determines the cost or enhancement boost of enhancing a card, it is its power level. The higher the power level of the feeder card, the more it will cost to enhance your card and the more it will increase the percentage of the boost. The only exception to this is if the feeder card is a Final Form card, in which the enhancement boost will be a little bit more than 4 singles of the same card.

#2A: They are talking about normals that evolve into 4-0 High Normals. Farming from 2-2 or 2-5 is the best way to get normals that evolve into high normals as they only cost you 3 stamina a card (although you may get rupies occasionally) because in this area, you are guaranteed only 3 attacks to get a treasure chest.

#3A: You can enhance a card with a skill by ANY card with a skill to have a chance of improving its skill level. As for your high shaman, make it a 4-6 (for info on evolving properly, please see this guide I wrote here for details: [You must be registered and logged in to see this link.] and use feeders without skills to evolve it until you get to a FF High Shaman. As for the skill level...don't try to obtain skill level 10 for a rare lol. It is VERY hard and will cost you prob 100+ feeders with skills IF you are LUCKY. For rares that have effects that you plan to actually use for their skills, High Shaman is one of which for man realm, go to skill level 4 or 5. It is much easier to obtain and cost you maybe 30-40 feeders with skills if you do it right