Profitable after the nature rune, bought in the last 2 hours
How these numbers work
Profit / cast = high alch value − item price − one nature rune. There is no GE tax: the item goes to the spell.
Buy offer uses the latest insta-sell price (cheaper, your offer may take a while to fill). Instant buy uses the latest insta-buy price for the item and the runes.
Max buy is the most you can pay per item and still break even.
A cast takes 3 seconds: 1,200 casts and 78,000 Magic XP an hour. Profit / 4h and GP / hour use the buy limit or 4,800 casts per 4 hours, whichever is lower, for that one item.
GE sell (taxed) is what selling the item at the latest insta-buy price pays after tax. Marked "sell" when that beats alching.