Packet Play Client Entity Effect

Version	ID
1.8.X	0x1D
1.9	0x4C
1.9.3	0x4B
1.12	0x4E
1.12.1	0x4F
1.13.1	0x53
1.14.4	0x59
1.15.2	0x5A

1.15.2

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x5A	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Duration in ticks.
			Flags	Byte	Bit field, see below.

1.14.4

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x59	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Flags	Byte	Bit field, see below.

1.13.2

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x53	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Flags	Byte	Bit field, see below.

1.13.1

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x53	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Flags	Byte	Bit field, see below.

1.12.2

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x4F	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Flags	Byte	Bit field, see below.

1.12.1

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x4F	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Flags	Byte	Bit field, see below.

1.12

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x4E	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Flags	Byte	Bit field, see below.

1.11.X

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x4B	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Flags	Byte	Bit field, see below.

1.11

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x4B	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Flags	Byte	Bit field, see below.

1.11

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x4B	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Flags	Byte	Bit field, see below.

1.10

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x4B	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Flags	Byte	Bit field, see below.

1.9.3

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x4B	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Hide particles	Boolean	False: show particles, true: hide particles

1.9.2

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x4C	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Hide particles	Boolean	False: show particles, true: hide particles

1.9

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x4C	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Particles	Byte Enum	0: show particles, 1: hide particles, purpose of other values unknown

1.8.X

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x1D	Play	Client	Entity ID	VarInt
			Effect ID	Byte	See this table
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1
			Duration	VarInt	Seconds
			Hide Particles	Boolean