This item can be either be bought from the Vendor in the Marketplace or crafted at the Alchemist with crafting materials.
So it might be interesting to note that to Craft an Anti-poison Potion, you need just 365 Gold worth of items (plus 5 Gaia’s Tear, which don’t have a direct Gold price).
If we look at how much Gaia’s Tears cost compared to Gold:
We see that Gold is worth (at the time of writing) almost twice as much as Gaia’s Tears. Prices for tokens in $USD will always fluctuate based on what’s happening on the market, with the prices going up when ingame demand increases and going back down when demand decreases. Free economy, etc. But, for the sake of argument, let’s assume it won’t deviate too far outside of [Gold/4]<Gaia’s Tear>[Gold*4], which would give it a fluid value of 0.25-4 Gold. At most this would put the value of 5 Gaia’s Tears at 20 Gold.
So at most, crafting a Mana Vial will only cost 385 Gold worth of resources, compared to the 3,000 Gold upfront cost of the Vendor.
In conclusion – Craft it if you can.
It might also be worth checking out items at the Trader at the Marketplace to see how much liquidity there is in a certain item. Click here for more about the Trader.
At the time of writing, there were no Anti-poison Potions available at the Trader:
Click to learn more about Item Liquidity Pools
Once PVE and PVP options are available, these items will significantly increase in demand and if there are any Anti-poison Potions available they’ll likely be quite expensive relative to crafting costs.