Summoning Rules
From Yu-Gi-Oh!
There are specific rules to Normal Summoning monsters, primarily dictated by their Level, but also influenced by inherent limitations in their Summoning Conditions.
[edit] Level 4 or lower monsters
Level 4 or lower monsters can be Normal Summoned to the field or Set, unless a card condition specifically prohibits it, and/or implies a special condition in which it must be Summoned another way, like for "Rare Metal Dragon".
[edit] Level 5 or 6 monsters
Level 5 or 6 monsters can be Tribute Summoned by Tributing 1 monster, unless a card condition specifically prohibits it, and/or implies a special condition in which it must be Summoned another way.
[edit] Level 7 or higher monsters
Level 7 or higher monsters can be Tribute Summoned by Tributing 2 monsters, unless a card condition specifically prohibits it, and/or implies a special condition in which it must be Summoned another way.
You must only Tribute 3 monsters if the card allows it (Such as to unlock the effect of Moisture Creature), or the card's Summoning Conditions require it (Such as with Victory Dragon).
