Level 8

Level 8 monsters are monsters who have eight red stars near the top of their card. Most monsters that are Level 8 are informally considered the "boss" monsters of a particular deck type or archetype.

Level 8 monsters require two Tributes in order to be Normal Summoned (known as Tribute Summoned). Their stats may vary, but generally fall in between the 2000-3000 range.

To see a list of Level 8 monsters in HCCG, see this page.