부여마법
당신이 조종하는 하나 이상의 생물이 플레이어에게 전투피해를 입힐 때마다, 조사한다. ("

, 이 마법물체를 희생한다: 카드 한 장을 뽑는다."를 가진 무색 단서 마법물체 토큰 한 개를 전장에 놓는다.)


, 당신의 무덤에서 생물 카드 한 장을 추방한다: 조사한다. 당신은 생명 2점을 얻는다.
In a Two-Headed Giant game, if you control more than one creature that can attack, you may have them attack different opponents so that Ongoing Investigation's first ability triggers twice.
Clue is an artifact type. Even though it appears on some cards with other permanent types, it's never a creature type, a land type, or anything but an artifact type.
If an effect refers to a Clue, it means any Clue artifact, not just a Clue artifact token. For example, you can sacrifice Wrench to pay for Alquist Proft, Master Sleuth's activated ability.
You can't sacrifice a Clue to pay multiple costs. For example, you can't sacrifice a Clue token to activate its own ability and also to activate Alquist Proft, Master Sleuth's ability.