Text from Monster Legends Community FB page
"Has it been 4 years already?! Yes! Monster Legends’ birthday month is here and we want to celebrate it with all of you. Be prepared to have a lots of fun and to get some monstrous rewards.
To celebrate Monster Legends’ birthday properly, you’ll need to get some candles to light up the final cake! When you collect all the necessary candles and go through the fun Dungeons you will be able to craft a NEW birthday monster YNTEC!
From June 4th, you can collect candles in the game. With these candles you will be able to participate in the special birthday dungeons.
But it’s not that easy! There are 5 colors of the candles: White, Blue, Yellow, Red, Black.
Five candles of a specific color will unlock a specific Dungeon:
5 White Birthday Candles give you access to the Easy Dungeon.
5 Blue Birthday Candles give you access to the Easy-Medium Dungeon.
5 Yellow Birthday Candles give you access to the Medium Dungeon.
5 Red Birthday Candles give you access to the Medium-Hard Dungeon
And 5 Black Birthday Candles will give you access to the most fun Dungeon of them all - the Hard one.
By defeating the monsters that will be waiting for you on every node of the Dungeons you will be able to collect Cells of YNTEC!
All the dungeons will be available until June 13th. Keep in mind that you need at least level 20 and the latest version of the game to participate in the event.
Login to Facebook and visit the Monster Legends Community Facebook Page, where you can find the Birthday Event with all the information on where to find the candles! And don’t forget to click on “GOING” to the event!
We’ll be waiting for you at the finish line with a cake! "
So I will place what I know here if you I missed something feel free to share
2 whithe candles in Cell dungeon
2 whithe candles in Monster dungeon
1 white and 1 blue in Dungeon of Books
2 blue in Love Season
1 black in 72h - Yndra
2 red in 72h - Muerte
1 yellow in rune challenge
2 blue in Monster Dungeon Freeza
1 yellow and 1 red in Rune dungeon
2 yellow and 1 red in Gem Dungeon
1 yellow, 1 red and 2 + 1 black in the maze (1 black in hidden path on the 9th)
costs without discount and last candle
1 black candle in Monster Dungeon
and be sure to read this info here from Fox
For the mini relic progressive starting on the 13th
You can access this island as soon as your monster is in Monstagram even if the event has already started so if the event starts at x hour and Yntec is hatched at X+1 or more hours you can participate in the event at X+1 or more hours
Lost Relic Challenge