REDU format ruling
Infernity Necromancer

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)When this card is Normal Summoned, it is changed to Defense Position. If you have no cards in your hand, this card gains the following effect: Once per turn, you can select 1 "Infernity" monster in your Graveyard, except "Infernity Necromancer", and Special Summon it.
Rulings
- This effect target 1 Infernity monster in your GY.
- If Skill Drain is active, the effect that lets Infernity Necromancer to gain the effect to Special Summon monsters is negated, so you cannot activate the effect to Special Summon 1 Infernity monster.
- If you activate the effect to Special Summon 1 Infernity monster and an effect is Chained that cause you to have 1 or more cards in your hand, you will still Special Summon the targeted Infernity monster.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.