While it only affects artifacts and creatures, the effect is instant, and is reliable enough given the amount of both in your average Commander decks
Attack for four
Youll play one of these if youre short on removal, and its better in a set with Constellation and Heliods Pilgrim, but its still a bad removal spell
These include "Royal Tribute", which forces both players to discard all monsters in their hand, "Hidden Temples of Necrovalley", which prevents both players from Special Summoning non-"Gravekeeper's" monsters, and "Imperial Tombs of Necrovalley", a Counter Trap negate
I also really enjoy the regular email notifications about new arrivals and restocked items, it makes it so easy to keep up with whats available
While Computer Search can search out any card in ones deck, and Dowsing Machine can become any Trainer in ones discard pile, Gold Potion only gets to do its one thing: heal off damage