mtg draw an additional card Well of Ideas [Commander 2014] – TokenMTG Rules Text: each, player, draws,

The ability text is a bit overwhelming, so lets break it down

That ability lets you pick once from four different effects: tapping or untapping a permanent, dealing 3 damage to each opponent, copying an instant or sorcery, or (presumably your last choice) putting Gandalf back on top of your deck

Requires specific pieces If you dont draw into the right combo pieces or too many protection cards like [card]Duress[/card] or [card]Tamiyos Safekeeping[/card], the deck can be inconsistent

The New Shrines + Hei Bai, Forest Guardian Shrines are highly parasitic

you can evoke it for free by exiling a blue card from your hand (like Force of Will)