Tenna, the Mage Bridge

You may look at the top card of your library
at any time and you may cast it, if it's an instant, sorcery or wizard spell.
Instant, sorcery and wizard spells cost {u/r} less to
cast. (For example, if you cast a spell with mana cost {1}{u}{r}, it costs {1}{u} or {1}{r} to cast.)
There is no paradox involved with fusing the future
and the present. It happens with each passing moment.