Mind Rake
Sorcery
Target player discards two cards.
Overload 
(You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
Spells of madness often require a sacrifice of sanity.
Illustrated by
The List#MH1-96CommonEnglishLegality
Rulings
Jun 14, 2019
While most spells with overload affect only permanents you control or only permanents your opponents control, Mind Rake affects all players, including you, if it’s overloaded.
Jun 14, 2019
If you don’t pay the overload cost of a spell, that spell will have a single target. If you pay the overload cost, the spell won’t have any targets.