Hello
Filippo. I would like to suggest some things so that more players can participate in this event or any future events. I'll put it in detail so that you guys can look through it, but items and amount are all up to you (admins') desire if it will be implemented.
Separate the Boss Hunting and Letter Collecting events.
- Letters Collect & Exchange Event
- Collecting the letters of SUMMER in different maps:
- Letters S-U-M will be available in Desert Scream, Bloody Ice,Green Despair, Port Lux, Fort Ruina, Forgotten Ruins and Undead Ground.
- Letters M-E-R will be available in Mutant Forest, Pontus Ferrum, Porta Inferno, Arcane Trace, Nostalgia Forest and Senillinea
- Reason: This will utilize all maps and all channels, less people will feel that they are at a disadvantage since there will be a lot of farming spots given that there are only three channels and only two channels have monsters in the server and it is pretty much accessible to everyone.
- Exchanging the letters to Event NPC Yul at Green Despair:
- There would be Four (4) levels of voucher exchange depending on how many each player have collected and each if used will give a random prize:
- Level 1: Bronze Voucher
- Requirements:
- 100,000 Alz
- 50 pcs of Letters S-U-M-E-R each.
- Lottery Items:
- Upgrade Core (Highest)
- Force Core (Highest)
- Slot Extender (Highest)
- [Costume] Summer Vacation Hat (1 Day)
- [Costume] Summer Vacation (1 Day)
- Basic Element
- Rare Element
- Inexhaustible Potion (HP) Lv. 4 (3 Days)
- Inexhaustible Potion (MP) Lv. 4 (3 Days)
- Protection of Veradrix
- Weapon Option Scroll (Highest) [SSA/MSA/ASA/CDI/CRI]
- Armor Option Scroll (Higehst) [SSA/MSA/ASA/CRI/CDI]
- Potion of Luck (10,000,000 Alz)
- Level 2: Silver Voucher
- Requirements:
- 500,000 Alz
- 100 pcs. of Letters S-U-M-E-R each.
- 2 pcs. of Bronze Voucher
- Lottery Items:
- Upgrade Core (Highest)
- Force Core (Highest)
- Slot Extender (Highest)
- [Costume] Summer Vacation Hat (7 Days)
- [Costume] Summer Vacation (7 Days)
- Basic Elements
- Rare Elements
- Inexhaustible Potion (HP) Lv. 4 (7 Days)
- Inexhaustible Potion (MP) Lv. 4 (7 Days)
- 3 pcs. Protection of Veradrix
- Weapon Option Scroll (Highest) [SSA/MSA/ASA/CDI/CRI]
- Armor Option Scroll (Highest) [SSA/MSA/ASA/CDI/CRI/]
- Bike Option Scroll (High) [SSA/MSA/CDI/CRI/RSA/RCD]
- Holy Water of Vitality
- Holy Water of Speed
- Holy Water of Flawless Defense
- Essence Rune (HP Absorb Limit Up)
- Essence Rune (HP Steal)
- Essence Rune (Critical DMG.)
- Potion of Luck (50,000,000 Alz)
- Level 3: Gold Voucher
- Requirements:
- 1,000,000 Alz
- 200 pcs. of Letters S-U-M-E-R each.
- 3 pc. Silver Voucher
- Lottery Items:
- Upgrade Core (Highest)
- Force Core (Highest)
- Slot Extender (Highest)
- [Costume] Summer Vacation Hat (15 Days)
- [Costume] Summer Vacation (15 Days)
- Basic Element
- Rare Element
- Unique Element
- Inexhaustible Potion (HP) Lv. 4 (30 Days)
- Inexhaustible Potion (MP) Lv. 4 (30 Days)
- 3 pcs. Protection of Veradrix
- Weapon Option Scroll (Highest) [SSA/MSA/ASA/CDI/CRI]
- Armor Option Scroll (Highest) [SSA/MSA/ASA/CDI/CRI/MCR]
- Bike Option Scroll (High) [SSA/MSA/CDI/CRI/RSA/RCD/MCR]
- Holy Water of Vitality
- Holy Water of Speed
- Holy Water of Flawless Defense
- Essence Rune (HP Absorb Limit Up)
- Essence Rune (HP Steal)
- Essence Rune (Critical DMG.)
- Essence Rune (Sword Skill Amp.)
- Essence Rune (Magic Skill Amp.)
- Essence Rune (Max Critical Rate Up)
- Potion of Luck (100,000,000 Alz)
- Level 4: Summer Voucher / Box
- Requirements:
- 5,000,000 Alz
- 20 pcs. Gold Voucher
- This item will be used as currency to buy the items in Yul's Item Shop.
- Only one (1) Summer Voucher will be given per 5m alz and 20 pcs Gold Voucher
- Reason: Having four levels of vouchers and each having their own lottery item will give players more reason to farm letters. Players that are just chill or pretty much lazy in farming can still obtain good rewards with Bronze Voucher items and having higher level of exchange might encourage them to collect more, especially when they can get good accessories in Yul's Item Shop.
- Players that are more eager to hunt will of course be rewarded more, but then again, if only they are lucky with the Gold Vouchers. This also gives chances to those who are not able to play much to get rare items such as the MCR Scroll, Elements and Essence Runes but having average items like UCHH will balance the economy so rare items will stay rare and encourage them to collect for the Summer Voucher where they can get "Sure Items" from Yul.
- This also grants that the event is "Time Consuming" meaning it is not so easy to finish the event with the amount of letters and exchange needed.
- Boss Hunting Event
- Hunting bosses will give players instant rewards that can also be claimed through letter farming. All bosses should spawn in all channels (If possible).
- Fortune Pig
- Spawn Area: Desert Scream, Green Despair, Bloody Ice, Port Lux and Fort Ruina
- Re-spawn Duration: 2 hours
- Monster Difficulty: Easy (How hard or How long it is to kill)
- Item Drops: The same as the Bronze Voucher plus the Bronze Voucher itself can be dropped on this boss but would be very rare.
- Item Drop Amount: 3-4 Items
- Dancing Lion
- Spawn Area: Undead Ground, Forgotten Ruins, Mutant Forest and Pontus Ferrum
- Re-Spawn Duration: 4 Hours
- Monster Difficulty: Medium
- Item Drops: The same as the Silver Voucher plus the Silver Voucher itself can be dropped but would be very rare.
- Item Drop Amount: 4-5 Items
- Minisha of Destruction
- Spawn Area: Porta Inferno, Arcane Trace, Senillinea
- Re-Spawn Duration: 6 Hours
- Monster Difficulty: Very Hard (Maybe as strong as the Arcane Golem)
- Item Drops: The same as the Gold Voucher plus the Gold Voucher itself, Silver Voucher, Bronze Voucher and a very rare chance that you could get a Summer Voucher.
- Item Drop Amount: 5-6 Items
- The amount of boss in each map, I would suggest would be two (2) so a good amount of players can hunt them (but don't disclose their exact locations for the "hunting" to work) and item drops should be loot for all.
- Reason: The boss hunting event could be a more faster way for players to earn vouchers, this way they have something to "anticipate" in the event other than just farming letters.
This is only a sample event format that I thought of with the information that you have given above. I might have missed some. xD
Sorry for the long post?
so exciting 
