MnM: powers for 0 points?

[Demons_eye]

Some powers like regenartaion have a flaw or two, for regenartaion its source. If you take source then do you have the power for 0 points? Or emotion control is 2 points per rank. You take snese and one emotion (they got to smell you and limiteed to fear) Is that free too?

[Nightson]

p.110 of core rules

FRACTIONAL COSTS
If modifiers reduce an effect’s cost to less than 1 power point per rank,
each additional –1 modifier beyond that adds to the number of ranks you
get by spending 1 power point on a 1-to-1 basis.

A power’s cost can be expressed as the ratio of power points per rank
(PP:R). So an effect costing 3 power points per rank is 3:1. If that effect has a total of –2 in modifiers, it costs 1:1, or 1 power point per rank.

Applying another –1 modifier adds to the second part of the ratio, making
it 1:2, or 1 power point per two ranks, and so forth.

Continue the progression for further reductions. Gamemasters may wish
to limit the final modified cost ratio of any effect in the campaign (to 1:1,
1:2, 1:4, or whatever figure is appropriate). As a general rule, 1:5 (five
ranks per power point) should be the lowest modified cost for a power in
Mutants & Masterminds, but the GM sets the limit (if any).

Example: The Soldier has Protection, but only effective against
blunt physical attacks (a –3 modifier) and the Impervious extra
(a +1 modifier) for a total modifier of –2. Since Protection costs
1 point per rank, the –2 modifier increases the number of ranks
per power point, so the final cost of the power is 1 power point
per 3 ranks of Protection.

[Demons_eye]

Yes thanks, this will help a lot and thank for the page number.