In the case of ranked matches, you can only form premade teams with a 2 tier higher or lower difference.
However,if you are Mythril or higher, you cannot form premade teams.
| Iron | Bronze | Silver | Gold | Platinum | Diamond | Mythril | Titan | Immortal | |
| Iron | O | O | O | O | X | X | X | X | X |
| Bronze | O | O | O | O | X | X | X | X | X |
| Silver | O | O | O | O | O | X | X | X | X |
| Gold | O | O | O | O | O | O | X | X | X |
| Platinum | X | X | O | O | O | O | X | X | X |
| Diamond | X | X | X | O | O | O | O | O | X |
| Mythril | X | X | X | X | X | X | X | X | X |
| Titan | X | X | X | X | X | X | X | X | X |
| Immortal | X | X | X | X | X | X | X | X | X |