This is quite powerful, as not only does Galea provide additional card access, but it can subvert high equip costs, potentially ignoring them entirely
You can cast it on turn five with no acceleration, and then swing for 10/10 the next turn after activating with mana-making effects you often find in these decks like Chromatic Lantern, Command Tower, and City of Brass
I dont really hate any of these (except maybe the last one), but I do dislike them: The card name isnt called Imakuni?'s Nasty Plot for nothing
When that lifegain is stapled to effects that give you extra cards, its even better
Monsters changed to Defense Position by this effect cannot change their battle positions until the end of the next turn
Each ST-11 Special Entry pack comes with 1 new P-065 Gammamon promo card, and 1 of 16 random alternative art cards