Level 4

Level 4 monsters are monsters who have four red stars near the top of their card. They are the most plentiful monster in HCCG, and probably in the TCG as well.

Level 4 monsters require no Tributes in order to be Normal Summoned. Their stats may vary, but generally fall in between the 1000-2000 range. They are also usually the cap of many generic searcher and swarmer cards, and the phrase "Level 4 or lower" is seen in the effect of many of these cards.

The following cards affect all Level 4 monsters:
 * Hurlbat
 * Discus Dragon (provided the monster can be Special Summoned in that way)
 * Carrion Pidgeon
 * Ocean Dweller - Savage
 * Rainbow Tail

To see a list of Level 4 monsters in HCCG, see this page.