Information list for chests
Here is a list of links for all the information you need about chests and the percentages of chance of obtaining a card of a certain rarity:
Standard Chest

Standard Chest 2

Standard Chest 3

Standard Chest 3

Epic Chest

Very Rare Chest

Rare Chest

Legendary Chest

Mega Legendary Chest

Super Mega Legendary Chest

Abnormal Chest

Mystery Chest

1 Epic Chest

3 Epic chest

1 Legendary chest

Lucky Chest

Lucky Chest 2

Lucky Chest 3

Cursed Rare Chest

Cursed Epic Chest

Cursed Legendary Chest