Focus on ur Sieq and Elpikon Priest. Others is a bit meh.

Few monster of yours can be use a fusion in future. Keep it.

Nah.
http://www.summonerswar.wikia.com/wiki/Fusion_Hexagram

I would say, unless you have a decent mob to awaken, dont spend too much time at essence dungeons. After all, dungeons gives you limited xp for your mobs. Try to finish all your quests first (to get more crystals). Save up your crystals to buy premium package (750 crystals), then you'll have a better chance to get better mobs (3*-5*). Until then, u can spend your time farming at normal maps. Once you are able to do faimon (stage 1 or 2), u can continue on to farm here to obtain 3* fire inugami. This is one of the few 3* mobs that worth leveling up until 5*. You can use the link provided in first page on the monster rating as reference. It may not be 100% accurate but at least it will give u an idea of what mobs worth keeping and what not.

for all new player remember to buy the 180 glory point devilmon every week

Waaaaa     
Dark Reaper last skill good eh?
Is that how u get Chloe ? dang i really need her..

I suggest u train ur Fire Inu and awaken into Raoq. Useful for low level.

what help you need?
haven't tried new mob before..
but ask me awaken water succ.. coz her leader skill is 24% arena speed.. ARENA need speed speed speed.

Rune Recommendations[2/4/6]

Miss Speedy – Swift/Focus(Spd/Atk%/Atk%)

Damage – Fatal/Focus(Spd/Atk%/Atk%)

Gung ho – Rage/Blade(Atk%/Crit D%/Atk%)

copied from http://summonerswarskyarena.info/succubus/

farm wind griffon ....he can help u alot in dungeon