I'm getting close to getting to the point where I can cut yews and fletch them, so I wanted to also have the ability to high alch them. What's the quickest/cheapest way to get from 50 (close to 51) to 55 magic in P2P?

Erm.. i dont know how quick it is but i found it pretty cheap to use crumble undead on skeletons from lvl 30 mage until 55 mage.

yep crumble undead all the way just us a earth staff air runes and chaos and kill skeletons here in varrock sewers

 

 

 

Ok I'll try crumble undead. From 40-50 I tele-grabbed zammy wines. It was very profitable, but extremely slow

You can also go law running for a day or two. Get around 4k laws and do cammy teleport, you'll get like....umm....i dunno, probably close to 85k exp.

Take a fire staff with nats, and go to Mage Training Arena, and do alchimist, each 1 gold give you 2 exp, if you have 3000gp you have 6000xp in magic + high or low alch xp, you get also pizzaz points and coins when you quit, i was suppose to get 1000 coins but i dont receive the 1000 coins they should give me. Also if you do all mage training, and have many pizzaz point in all, almost 5000 in some and 3000 for others, you can buy full Infinity with bone to peaches and staff with mage book.