Advanced format ruling
Cocoon Rebirth
Card effect (current official text)You can Tribute 1 face-up "Chrysalis" monster you control to Special Summon 1 "Neo-Spacian" monster written in the card text of that card from either player's Graveyard.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.