Spell Speed 1 (スペルスピード1 , Superusupīdo Ichi) is the slowest of all Spell Speeds. These card effects cannot be chained in response to any other Spell Speed effects. Typically, these effects cannot be Chain Link 2 or higher, unless multiple Spell Speed 1 effects are activated simultaneously.

The following are all Spell Speed 1:
Normal/Field/Continuous/Equip & Ritual Spell Cards
Flip/Ignition and Trigger Effects
Ignition-like & Trigger-like Effects