[Zoo] How can I upgrade the zoo card?

Zoo Crypto World

It was difficult for me to know how to upgrade without any information.

1. Only Epic and Legndary cards can be upgraded.
2. The teamId should be the same. or Consume Universal MEME cards.
   but, Universal MEME cards are expensive, so it is better to use the same teamid.
3. There is a set card grade for each upgrade level. *****
   Each required card can be identified by color.
   (I struggled with not knowing this information.)

For example:

Epic
| Level | Requires
| ------------ | ------------
| 2 | 1 Junk
| 3 | 1 Normal
| 4 | 1 Junk, 1 Normal
| 5 | 1 Rare