4/2 weapon is worth a little less than 4 mana, so you're paying at least 2 mana for the effect, probably slightly more(Truesilver has a bonus effect for a 4 mana 4/2 weapon). This one is a 3 mana 3/3, so you're paying 1 mana max for the effect, in reality likely slightly less. Additionally, this effect rolls more quickly.
4/2 weapon is worth a little less than 4 mana, so you're paying at least 2 mana for the effect, probably slightly more(Truesilver has a bonus effect for a 4 mana 4/2 weapon). This one is a 3 mana 3/3, so you're paying 1 mana max for the effect, in reality likely slightly less. Additionally, this effect rolls more quickly.
Wow, infinite value. Ridiculous! Also, 3 mana for 6/6 of stats is bonkers, and it could eventually be 12/12 or even 15/15 of stats down the line.