Luna special

"Luna Special" is a TETR.IO opener made by Luna (aka Luwuna, Lunya and Luwunya) as a PCO continuation for when there is no PC solve. The Luna Special is specifically meant for TETR.IO because of the game's multiplier system; the high combo into a Tetris finish sends huge spikes. The opener is best used against slower players or players that wait to receive garbage because it first cheeses and then sends large spikes (up to 30-50 total lines) that can instantly top out an opponent.

Late L/J
If you have a late L/J in the second bag you can spin the missing piece under like this.

You can also 180 spin the L/J piece.

Four wide
This is what a full "Luna Special" should look like. The Tetris has to be in the center 2 rows or there will be many instances where you can't continue the combo. Make sure to have the hole centered for maximum spike chance.

You may have to do the Tetris early, doing can also be used tacticly to cancel if you're opponent is trying to send pressure to cancel the cheese which round result in in you cancelling their pressure and them still getting the cheese they attempted to cancel.

You can increase the chance of finishing with a Tetris by keeping track of the bags.

Sent lines
If you are sent clean lines you should attempt to keep that part of the 4wide lower to increase the chances of finishing with another tetris. You may also consider skimming the first tetris for more multiplier on the the clean grabage.