Brainstone
Brainstone
, , Sacrifice Brainstone: Draw three cards, then put two cards from your hand on top of your library in any order.
One day, it might provide a flash of insight that turns the tide of battle. Meanwhile, it looks lovely on an end table.
illus. Drew Tucker # 426/303

Oracle Text
, , Sacrifice Brainstone: Draw three cards, then put two cards from your hand on top of your library in any order.
We all know Brainstorm is good because it costs 1 and doesn't cost 3. This might not have been broken even if it had Dream Cache's text instead. I'd be tempted to say this is a lot more reusable, but flashback for instants is all over the place.