Instant do
/effect @p haste 99999 255
for instant-instant
Note: Minify the command to avoid issues :)
OP Smurf Pickaxe
OP Smurf Sword
OP Smurf Leggings
OP Smurf Helmet
GOD SWORD!
GOD SWORD! 1.11.2
The Super Sword
OP DIAMOND SWORD!!!