The first one in is the first one dead. If you are low on health potions don't risk being in the middle of a swarm of enemies, stay to the outside and take them out one at a time.
Unlike the original, enemies no longer drop magic weapons; instead you can forge your very own with runes you find in your journey. A magic weapon can really save your day so forge as often as you can afford!
If u have enough money to buy a weapon of your choice buy like five or six then go to the upgrade place and instead of buying one level at a time go up to ten and buy it it may take some money but its very helpful.