1)Promotion for spenders as example:
Spend 1000 aeria points get 2 everlasting life
Spend 2000 aeria points get 4 everlasting life and 5 silver
Spend 5000 aeria points get a purple hero(either atk,def or spd depends of wish of user..)
Well prizes do not need to be that only as example used those
2)Have a competition as example lets say on 30th kill a world map boss:
During that day only 9 bosses will spawn so basicly maximum of 9 winners,how ever not all who play the game are from aeria so probitly would be only 3 winners.
How event would work:
During the 30th(as example date) player needs to kill the boss(Phoenix,Zeus,Grand Dragon)
And post a screen shoot of the report where its shown datum and win.
After posting he gets a prize(prize up to the gm what to give)
3)Copy what i sawed in other games. Announce in game 1-2 a day a specific secret word players need to post it at forum together with a screen shoot as proof, after receiving few days in raw they get prizes,depends how many days they were on prize is determined.
4)Well its a complete copy :s so i post simple link
Well those are mine 4 Ideas so far.. all which got any other idea are welcome to post here for gm to see