Normally, tripling your damage would be something that makes your board far better at attacking and blocking and that would be enough, but because youre going to need to tap several creatures for this most of the time, youre also decreasing your chances of being able to effectively take advantage of this right away
However, cards worth more than $0.25 are usually listed at $0.10-0.15 or higher
(It's an artifact with ", Sacrifice this token: Add one mana of any color.") Equip (: Attach to target creature you control
Nothing special about this card other than the amount of damage you can do from four 3/5 flyers with damage doubling as their ability
Tragic Poet, a low mana cost creature to get any enchantment in my deck back for any reason
At a price point of around $70, you get a full deck, with a multitude of new cards and reprints all with new Final Fantasy art