mtg cards like exploration exploration-burgeoning exile the top card of your library Looking forward to this Land

If however the spell you manage to place back on top is one that is only useful because of the stage of the game such as a ramp spell then you have gained a huge advantage, greater that you would have gotten from putting that card in the graveyard

Dragonfire Blade Dragonfire Blade benefits from lots of ways to cheat the equip costs, but the baked in one counts the colors on say a 3-color legendary or free on Avatar Aang is all too common a scenario

or you can use more then one

The lure abilities limit the opponent's blocking options rather than specifying which creature will block

Both give you an extra turn for 5 mana, which means another attack, land drop, and draw step all rolled into one