mtg urza's saga card list Magic: The Gathering Tournament Pack - 75 Cards That player discards that card. Urza's Saga | Modern Horizons

In that case, you will only draw a card when it resolves

Light Up the Stage One of the best red impulse card draw spells, Light Up the Stage isnt even embarrassing to play for 3 in a pinch

Drawing two cards a turn as a plus two is going to be nearly impossible for an opponent to come back from, unless theyre already way ahead

For example, if it's dulled is stays dulled, and effects such as "Add +1000 power until the end of the turn" stay in effect

The latter Samurai is a nice 2-drop 2/2 on curve with two abilities

That said, both Swords to Plowshares and Dispatch are more than playable, and I think which you pick first will depend largely on what your deck is trying to do