Playing dark magician girl deck against Superheavy Samurai... In my field there is “Kiwi Magician Girl“, the effect says “Spellcaster-Type monsters you control cannot be destroyed by card effects, and your opponent cannot target them with card effects”, I attack directly and he activate the graveyard effect of “Superheavy Samurai Gigagloves” which says “ You can banish this card from your Graveyard; excavate the top card of your Deck, and if it is a "Superheavy Samurai" monster, add it to your hand, and if you do, the attacking monster's ATK becomes 0. Otherwise, send it to the Graveyard.”, then he draw a superheavy samurai monster and the kiwi magician girl’s ATK goes down to 0... WHY?!
read. the. card.
if it doesn't say "target", it doesn't target
Gigagloves effect does not target. Targetting effects usually have the word "Target" on the card text. Eg: Treacherous Trap Hole.