This string property stores the property of Spell and Trap Cards (and other non-Monster Cards, including Virus and Trap Spell).
W
Ritual Spell Card +
S
Continuous Trap Card +
T
Continuous Spell Card +
Normal Spell Card +
S
Normal Spell Card +
Normal Spell Card +
Equip Spell Card +
Normal Spell Card +
T
Normal Spell Card +
S
Continuous Trap Card +
W
Continuous Spell Card +
T
Counter Trap Card +
U
Normal Spell Card +
S
Normal Trap Card +
T
Normal Trap Card +
W
U