diff --git a/card.go b/card.go
index 08efd3d..c3d5f30 100644
--- a/card.go
+++ b/card.go
@@ -19,6 +19,7 @@ type Card struct {
 	Effects   []*Effect `json:"effects"`
 }
 
+//go:generate enumer -type=CardType -json
 type CardType int
 
 const (
@@ -50,12 +51,6 @@ func NewEmpty(p int) *Card {
 		Effects:   []*Effect{},
 	}
 }
-func (c CardType) String() string {
-	if c == -1 {
-		return " "
-	}
-	return []string{"V", "A", "2", "3", "4", "5", "6", "7", "8"}[c]
-}
 
 func (c *Card) Empty() bool {
 	return c.Type == EmptyValue
diff --git a/cardtype_enumer.go b/cardtype_enumer.go
new file mode 100644
index 0000000..503d64d
--- /dev/null
+++ b/cardtype_enumer.go
@@ -0,0 +1,77 @@
+// Code generated by "enumer -type=CardType -json"; DO NOT EDIT.
+
+//
+package tome_lib
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+const _CardTypeName = "EmptyValueValkAceTwoThreeFourFiveSixSevenEight"
+
+var _CardTypeIndex = [...]uint8{0, 10, 14, 17, 20, 25, 29, 33, 36, 41, 46}
+
+func (i CardType) String() string {
+	i -= -1
+	if i < 0 || i >= CardType(len(_CardTypeIndex)-1) {
+		return fmt.Sprintf("CardType(%d)", i+-1)
+	}
+	return _CardTypeName[_CardTypeIndex[i]:_CardTypeIndex[i+1]]
+}
+
+var _CardTypeValues = []CardType{-1, 0, 1, 2, 3, 4, 5, 6, 7, 8}
+
+var _CardTypeNameToValueMap = map[string]CardType{
+	_CardTypeName[0:10]:  -1,
+	_CardTypeName[10:14]: 0,
+	_CardTypeName[14:17]: 1,
+	_CardTypeName[17:20]: 2,
+	_CardTypeName[20:25]: 3,
+	_CardTypeName[25:29]: 4,
+	_CardTypeName[29:33]: 5,
+	_CardTypeName[33:36]: 6,
+	_CardTypeName[36:41]: 7,
+	_CardTypeName[41:46]: 8,
+}
+
+// CardTypeString retrieves an enum value from the enum constants string name.
+// Throws an error if the param is not part of the enum.
+func CardTypeString(s string) (CardType, error) {
+	if val, ok := _CardTypeNameToValueMap[s]; ok {
+		return val, nil
+	}
+	return 0, fmt.Errorf("%s does not belong to CardType values", s)
+}
+
+// CardTypeValues returns all values of the enum
+func CardTypeValues() []CardType {
+	return _CardTypeValues
+}
+
+// IsACardType returns "true" if the value is listed in the enum definition. "false" otherwise
+func (i CardType) IsACardType() bool {
+	for _, v := range _CardTypeValues {
+		if i == v {
+			return true
+		}
+	}
+	return false
+}
+
+// MarshalJSON implements the json.Marshaler interface for CardType
+func (i CardType) MarshalJSON() ([]byte, error) {
+	return json.Marshal(i.String())
+}
+
+// UnmarshalJSON implements the json.Unmarshaler interface for CardType
+func (i *CardType) UnmarshalJSON(data []byte) error {
+	var s string
+	if err := json.Unmarshal(data, &s); err != nil {
+		return fmt.Errorf("CardType should be a string, got %s", data)
+	}
+
+	var err error
+	*i, err = CardTypeString(s)
+	return err
+}
diff --git a/go.mod b/go.mod
index 5fc3f2b..c11df13 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,7 @@ module git.saintnet.tech/tomecraft/tome_lib
 
 go 1.16
 
-require github.com/google/uuid v1.3.0
+require (
+	github.com/alvaroloes/enumer v1.1.2 // indirect
+	github.com/google/uuid v1.3.0
+)
diff --git a/go.sum b/go.sum
index 3dfe1c9..44d833d 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,13 @@
+github.com/alvaroloes/enumer v1.1.2 h1:5khqHB33TZy1GWCO/lZwcroBFh7u+0j40T83VUbfAMY=
+github.com/alvaroloes/enumer v1.1.2/go.mod h1:FxrjvuXoDAx9isTJrv4c+T410zFi0DtXIT0m65DJ+Wo=
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
 github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/pascaldekloe/name v0.0.0-20180628100202-0fd16699aae1 h1:/I3lTljEEDNYLho3/FUB7iD/oc2cEFgVmbHzV+O0PtU=
+github.com/pascaldekloe/name v0.0.0-20180628100202-0fd16699aae1/go.mod h1:eD5JxqMiuNYyFNmyY9rkJ/slN8y59oEu4Ei7F8OoKWQ=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/tools v0.0.0-20190524210228-3d17549cdc6b h1:iEAPfYPbYbxG/2lNN4cMOHkmgKNsCuUwkxlDCK46UlU=
+golang.org/x/tools v0.0.0-20190524210228-3d17549cdc6b/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
diff --git a/session.go b/session.go
index 24b5869..52715f5 100644
--- a/session.go
+++ b/session.go
@@ -10,12 +10,13 @@ type SessionCmd string
 type SessionResp string
 
 const (
-	SessionCmdQuery SessionCmd = "query"
-	SessionCmdJoin             = "join"
-	SessionCmdLeave            = "leave"
-	SessionCmdPlay             = "play"
-	SessionCmdPoll             = "poll"
-	SessionCmdReady            = "ready"
+	SessionCmdQuery    SessionCmd = "query"
+	SessionCmdJoin                = "join"
+	SessionCmdLeave               = "leave"
+	SessionCmdPlay                = "play"
+	SessionCmdPoll                = "poll"
+	SessionCmdReady               = "ready"
+	SessionCmdLoadDeck            = "load_deck"
 )
 
 const (
@@ -26,7 +27,9 @@ const (
 	SessionRespJoinError                     = "join error"
 	SessionRespLeft                          = "left"
 	SessionRespPlayed                        = "played"
+	SessionRespDeckLoaded                    = "deck loaded"
 	SessionRespError                         = "generic error"
+	SessionRespLoadDeckError                 = "load deck error"
 	SessionRespBroadcastSenTurn              = "Sentinal turn"
 	SessionRespBroadcastScoTrun              = "Scourge turn"
 	SessionRespBroadcastSenWin               = "Sentinal wins"
@@ -46,10 +49,11 @@ type SessionCommand struct {
 	MatchID     uuid.UUID  `json:"match_id"`
 	Command     SessionCmd `json:"command"`
 	GameCommand *Command   `json:"game_command,omitempty"`
+	Data        string     `json:"data,omitempty"`
 }
 
 func (s *SessionCommand) String() string {
-	return fmt.Sprintf("%v %v %v\n", s.ID, s.Command, s.GameCommand)
+	return fmt.Sprintf("%v %v %v %v\n", s.ID, s.Command, s.GameCommand, s.Data)
 }
 
 type SessionCommandResult struct {