Sizzling / Searing Arrows (Advanced Player's Guide)

[Fabio P.]

Hi everybody, two quick questions:

1)
Is the cost of Sizzling and Searing Arrows (1516 gp) for a stack of arrows (like 20 or 50) or is that just the cost of one arrow?

2)
If during a full attack a character shots 5 Sizzling Arrows and, say, 2 hits... is the damage over time counted 2 times (1d6 + 1d6)? Or just one?

[Fabio P.]

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