Advanced format ruling
Dark Spider
Card effect (current official text)Once per turn, you can increase the Level of 1 face-up Insect-Type monster you control by 2, until the End Phase.
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.