Monastery Swiftspear
 
It sounds a little odd at first to think of this card in the same tradition as Goblins of the Flarg, but that's what it is in a sense - a game-starting creature for spell-based red decks. I've often found it a little paradoxical that red is a spell color that is also historically associated with attacking with one- and two-cost creatures, yet it's worked many times over the years, and when you have a card as strong as Monastery Swiftspear, it will undoubtedly work again. In fact, this card adds a level of trickiness to burn decks that they don't always have - for example, it will occasionally happen that you can kill one creature with a damage spell and use the boost to the Swiftspear to let it survive a similarly-costed creature in combat.
 
Constructed: 3/5
Casual: 3/5
Limited: 3/5
Multiplayer: 2/5
EDH/Commander: 2/5

Today's card of the day is Monastery Swiftspear which is a one mana Red
1/1 with Haste and Prowess.  This is an excellent second turn play followed by Titan's Strength or a similar card which can deal five damage very early.  Similar options exist with three mana on the third turn and so on which makes this a very serious early game threat if the opponent has nothing to block with.  Even without direct support a one mana 1/2 with Haste is decent and any non-creature makes it a 2/3 until end of turn, so it is strong in burn and other spell based Red decks across formats.
 
In Limited this is a good second pick in Booster after a Red rare and in a format where almost any one mana creature is playable this is quite a bit better than most.  In Sealed it is an automatic and easy inclusion for Red and helps add value to splashing the color as it can offer a low cost threat to more spell heavy builds.
 
Constructed: 4.0
Casual: 4.0
Limited: 4.0
Multiplayer: 4.0