| image name = SignalWarrior-OWMADU-EN-VG-artwork.png

A '''Signal Counter''' is a specific type of [[counter]] that is used by certain cards. They were introduced with the release of "[[Signal Warrior]]" and "[[Synchro World]].

These counters are placed on "Signal Warrior" during each mimics the effects of the [[Standby PhaseAnime-only|anime-only]], on itself and every face-up card "[[Field Spell CardSpeed World 2]] on the field. If ", making Signal Warrior" has any Counters the ''[[OCG]]''/''[[TCG]]'' counterpart of them placed on itself, it cannot be destroyed by battle or opponent'[[Speed Counter]]s effectsin a certain sense.

MoreoverBoth "Signal Warrior" and "[[On Your Mark, Get Set, its controller can remove a certain number of them from anywhere once per turnDUEL!]]" place counters during each [[Standby Phase]], to activate the same effects as the ones on while "[[Speed Synchro World 2]]", making Signal Counters the OCG counterpart of places them when a [[Speed CounterSynchro Summon]]s in it performed. These can activate different effects by removing a certain sensenumber of Signal Counters. ==Gallery==<gallery>SignalCounter-MADU.png | A Signal Counter as it appears in ''[[Yu-Gi-Oh! Master Duel]]''</gallery>

{{Card query|[[Counters::Signal Counter]]|medium=official|type=spellnonmonster}}