That nets all their opponents three cards each, which means the spoils are shared, but youve put one player incredibly behind on card advantage
They are usually permanents whose restrictive effects are usually worded as static abilities constantly applied for as long as theyre on the battlefield
Gramma Tala: Storyteller, Mickey Mouse: Detective, and One Jump Ahead are all key cards for ramping up in the Sapphire/Steel deck, with each offering its own method of adding to the inkwell at a low cost
Shriekmaw is always a good one with at and obviously on the X in 1 creatures cards are a big buff to it as well
It's really bad for your mana and a tiny bit of lifegain doesn't offset that
Dogged Detective filters your draws and pitches cards to your graveyard through surveil, and it returns to your hand from the yard any time an opponent double-spells