kenseido wrote:Power Reserve is an Dynamic Array, plain and simple.
Well, slightly less simple. Built into it is that it's slightly cheaper for the first two powers at the cost of that you must have some ranks already present in the powers being "boosted". Example:
Dynamic Speedy Array 5 [10 pp + 5 pp for 3 dynamic slots]
* DBP: Speed 10
* DAP: Quickness 10
* DAP: Leaping 10
This array lets you get up to Speed 10, up to Quickness 10, up to Leaping 10, or some mix in between.
With the Power Reserve:
Speed 2 [2 pp]
Quickness 2 [2 pp]
Leaping 2 [2 pp]
Speed Power Reserve 4 [8 pp + 1 pp for additional power].
-- Applies to Speed, Quickness, and Leaping.
Paying the same amount, it looks like the power reserve clearly comes out on top, being able to reach the same upper values for the powers while also having 2 ranks of each. However, since the Power Reserve is Sustained, this means greater difficulties if any of the powers are something that you'd want to maintain if you get Stunned. Also, if the Power Reserve involves a different descriptor, that may mean additional avenues for powers to get nullified or countered (this is, of course, discussed in the sidebar in Ultimate Power).
*shrug* Power Reserve is one of those things where the GM has to keep his eyes out for cases where the player builds it to get "free" benefits.