Editing Main Phase 1

{{Infobox/Archetype/Start
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{{Infobox/Archetype/ExtendedName
	| kanji                = メインフェイズ１
        | japanese             = 
	| furigana             = 
	| romaji               = Mein Feizu 1
	| japanese translated  = 
	| english              = Main Phase 1
	| french               = Main Phase 1
	| german               = Main Phase 1
	| italian              = Main Phase 1
	| korean               = 메인 페이즈 1 ''Mein Peijeu 1''
|chinese=主要階段１ ''Zhǔyào Jiēduàn 1 / Zyu2 jiu3 Gaai1 dyun6 1''
        | portuguese           = Fase Principal 1<br>Formerly: Main Phase 1
	| spanish              = Main Phase 1
}}
{{Infobox/Archetype/End}}

{{Turn Structure}}

'''Main Phase 1''' (Japanese: メインフェイズ１ ''Mein Feizu Ichi'') is a [[Main Phase]] conducted after the [[Standby Phase]]. As a Main Phase, most actions that could normally be performed in [[Main Phase 2]] can also be performed in this phase.

After Main Phase 1 has ended, the turn player may choose to enter the [[Battle Phase]]. If they choose not to, the player automatically proceeds to the [[End Phase]] (they cannot enter [[Main Phase 2]] unless they conduct their Battle Phase).

Some cards and effects can only be activated during Main Phase 1, such as "[[Cold Wave]]" and the effect of "[[Dark Strike Fighter]]". Many of these effects possess this restriction due to applying an effect during the Battle Phase, such as "[[After the Struggle]]" and the effect of "[[Baby Tiragon]]".

==Possible actions==
In Main Phase 1, the [[turn player]] may:
* [[Normal Summon]]/[[Normal Set|Set]] a monster (the player can only perform one Normal Summon/Set per turn, so the player cannot Normal Summon/Set in both Main Phases).
* [[Special Summon]] a monster(s).
* Manually change the [[battle position]] of a monster, provided that monster did not declare an attack during the [[Battle Phase]], it was not [[Summon]]ed or [[Set]] during that same turn, and it has not already manually changed its battle position that turn.
* [[Flip Summon]] a [[Monster Card|monster]], provided it was not [[Summon]]ed or [[Set]] during that same turn.
* Activate [[Ignition Effect]]s, such as those of "[[Barrel Dragon]]" or "[[Cannon Soldier]]".
* [[Set]] [[Spell Card|Spell]]/[[Trap Cards]].
* Activate Spell/Trap Cards of any [[Spell Speed]]. [[Quick-Play Spell Card]]s and [[Trap Cards]] cannot be activated in the turn they are [[Set]].

==See also==
*[[Skips Main Phase 1]]

{{Gameplay}}
[[Category:Phases and Steps]]