It can deal damage to any target equal to the power of the creature entering, making it a strong addition to those game plans
It's great a as 1-drop because people won't often block with their bigger 1 or 2 drops because of fear that just swell into 3/3 and kill their dork while your Rootwalla lingers
For Draft Boosters, when you get a non-foil legendary creature, one of three will have the showcase treatment, with the regular version occurring the other two times
If it was a creature card, create a 1/1 white Human Soldier creature token
Demand, not scarcity, is the ultimate driver of price
The amazing part is that the qualifier to this phrase is that you have 40 life (your starting total in a Commander game) at the beginning of your upkeep