Octo Opus

Creatures in Un- games with power between 0 and 1 still deal damage equal to their power, and players can have fractional life totals. For example, if a ½/½ creature deals combat damage to a player with 10 life, the player will go to 9 ½ life.

If Contortionist is no longer on the battlefield, you may still sacrifice Octo Opus to draw a card.

If an effect instructs you to do something based on Contortionist’s power or toughness that can only be done in whole numbers, such as draw cards, and Contortionist’s power or toughness isn’t a whole number, ignore that instruction. You can’t draw half a card, mill a quarter of a card, etc.

If you control more than one creature named Contortionist as the last ability resolves, perhaps because you created a copy of the token or created more than one to begin with, choose one of them and use its number of folds to determine how many cards to draw.

If you’re not using a printed token or another Magic card to represent the token, you can’t fold it in half. Its power, toughness, and the number of folds it has (zero) remains the same.

Sacrificing Octo Opus has no effect on Contortionist. It will still have the ability to fold in half at the beginning of your upkeep, but doing so is optional.

To represent the token, you have three choices: (1) Use the printed token included in some Unfinity booster packs, (2) use another printed Magic card or token as a substitute, or (3) use anything else, read the next ruling, and be slightly sad.