Halloween Event 2021

The Halloween Event 2021 is taking place from 27.10.2021 05:00 am to 02.11.2021 04:59 am. In-between these dates the players have the chance to participate in some activities and claim specific rewards.
=Halloween Currencies=
There are two currencies introduced and used by the Halloween Event:
* Candy Pumpkin
* Candy Corn
These currencies are not the same as the 2020 event.
==Candy Corn==
There are two ways to obtain Candy Corn:
*Fight (sweep) in Underground or Main Story. The exchange rate is always 1 = 2 Candy Corn but only available in multiples of 12. 
*Fight Sir Pumpkin's Trick Waves
Players use Candy Corn to upgrade the decorations in their Towns.
Excess Candy Corn can be exchange for Pumpkin Candy in the store.
Abyss Den stages DO NOT give candy corn.
==Pumpkin Candy==
Pumpkin Candy can be obtained in one of the following ways:
*Fight Sir Pumpkin's Trick Waves
*Purchase special packs in the store with diamonds or real money
*Exchange for Candy Corn, at a rate of 1 Pumpkin Candy = 50 Candy Corn
=Decorating the Town=
Thorough the event, each player may individually decorate their town by spending a specific amount of Candy Corn. There is a total of 8 levels.
Upgrading each level has the following consequences:
*Changes visuals around the town (to reflect the next level of decorations)
*Grants specific minor rewards
*Unlocks specific Trick Wave levels
*Increases the amount of Candy Corn and Pumpkin Candy dropped
*Grants specific buffs, enabled only in Trick Wave battles
Level	Candy Corn
Cost	Rewards 	Trick Wave	Trick Wave	Trick Wave
Level	Candy Corn
Cost	Rewards 	Unlocks 	Candy Corn	Pumpkin Candy
0 	8 	- 	- 	- 	-
1 	24 	5x 	- 	- 	-
2 	72 	300 	- 	- 	-
3 	200 	1x 	1-4 	- 	-
4 	400 	500x 	5 	+10% 	-
5 	800 	2x 	6 	+20% 	+10%
6 	1800	5x Glittering Pearl 	7 	+30% 	+20%
7 	4000	2x 	8 	+50% 	+40%
8 	 	1 Epic Artifact Component Chest	- 	+60% 	+50%
=Trick Waves=
Once a player's Town decorations are upgraded to level 3, it is possible to start fighting Sir Pumpkin's Trick Waves.
Trick Waves are PvE battles that obey the following rules:
*There is a total of 8 Trick Wave levels. The higher the level, the better the rewards.
*Each player must beat a level (starting with level 1) before they unlock the immediate next level.
*In order to unlock a level, the town decoration level must be of at least that 1 level lower than the wave level. 
*Once a level has been beaten once manually, it can be sweeped.
*The cost to fight or sweep a level is 8
*Trick Waves reward players with Candy Corn, Pumpkin Candy and random materials.
*There is be a hard limit of 50 waves that can be beaten per day.
Wave 	Decoration Level Requirement	Candy Corn 	Pumpkin Candy 	Basic Material Chests
1 	3 	50 	50 	3
2 	3 	60 	60 	3
3 	3 	70 	70 	3
4 	3 	80 	80 	3
5 	4 	100 	100 	4
6 	5 	110 	110 	4
7 	6 	120 	120 	4
8 	7 	130 	130 	4
8 + max buff	 	130 + 78 (60% buff)	130 + 65 (50% buff)	4
Because the number of Daily Trick tries is capped at 50, it is recommended to sweep story and underground stages to get as high as possible Decoration level for the Buff before starting to beat Trick Wave 1. 
You can get to Decoration Level 8 on the 1st day then sweep 50 times on days 2 - 6.
=Halloween Quests=
There are a number of Halloween Quests that are completed by beating a specific number of Trick Waves (either daily or in total).
Quest Name 	Reward 	Total Energy cost
Play 20 Tricks before the end of the day*	50 300 3000 	160
Play 30 Tricks before the end of the day*	50 500 5000 	240
Play 50 Tricks before the end of the day*	100 1000 9000 	400
Play a total number of 50 tricks 	1 2 1 	400
Play a total number of 150 tricks 	2 2 200 	1200
Play a total number of 250 tricks 	500 3 Quiet Pearl 3	2000
*current assumption is that this quest will reset the next day.
=Pumpkin Candy Exchange=
The goal of collecting Pumpkin Candy is exchanging it for specific rewards. See the rates below:
Item 	Pumpkin Candy
Cost	Stock
Premium Artifact Component Chest 	45K 	1
10x Commander Unit Token Selection Chest 	10K 	3
20x Void Mithril 	5000	5
10x Quiet Pearl 	7500	7
Random Prestigious Artifact Component Chest	35k 	1
5x 	2500	8
500x Dragon Blood 	3500	8
Premium Artifact Component Pack 	10k 	1
10x Glittering Pearl 	3000	7
10x SSR Souls 	6500	3
1x Gold Key 	1200	10
500 	1 	9999
2x 300 	1 	999
Remember that you can exchange excess Candy Corn for Pumpkin Candy here, at a 50:1 rate (Limit of 2000 exchanges).
=Strategy=
Breakdown of resources: 
The clear and most important limiting resource to consider is the number of daily tries - 50.
The next most important resource is the amount of energy available to you on day 1 of event. If you need to clear abyss den stages, you need to set aside more energy.
Therefore, our immediate goal on day 1 is to get to Level 8 Decoration by using at little daily trick tries as possible so as to get as much wave 8 sweeps with Level 8 buffs and within reasonable levels of expenditure for energy.
Below are the flowchart for decision making and the 5 main paths to take. Slight deviation from the path is possible, but it must save at least 1 trick try when your town is below level 8 decorations.
==Flowchart==
* Day 1
** Sweep 10 Main Story missions and 8 Underground (Story) missions
** Ask yourself how much energy you are willing to buy (before using your Trick Tries) > spend in story/Underground missions for Corn > upgrade Decorations
*** Upgrade to Levels 4 - 8
*** Get to decoration Level 8 with the least amount of Trick Tries (remember you have only 50 tries per day)
** Sweep Wave 8 with remaining Trick Tries
* Day 2-6
** Sweep Wave 8 50x times at Decoraiton level 8
For more information please refer to the spreadsheet provided by Hancy [].