If you’re hurting for cash and need great, yet cheap weapons, look no further than here. Below is a list of of what I like to call Infinity -1 Swords. Basically, Infinity -1 Swords are perfectly functional and hard-hitting weapons that don’t take as much time to obtain as the higher-tiered weapons that are arguably the best weapons in the game, which I like to call Infinity +1 Swords.
At level 70, the abyssal whip is a good, yet cheap weapon to use. When paired up with an offhand dragon weapon or the Enhanced Excalibur (requires high skill levels and quests, though), it becomes very effective for those with small amounts of cash or those recovering from a scam. If you want to use a shield instead, get the level 70 Bandos warshield, at a cheap price of 111k.
If you’re going for the two-handed approach, go with Barrows’ weapons. Verac’s flail, Dharok’s greataxe, Guthan’s spear, and Torag’s hammer are each level 70 weapons that can hit harder than the abyssal whip + offhand dragon weapons at the cost of more money spent for buying and repairing the weapons. Out of those four, Torag’s hammer is the cheapest at 190k (at the time of this writing), but be mindful that Barrows equipment does degrade, so when using it, be prepare to spend money to keep using it. Alternatively, if you partly completed the quest The Branches of Darkmeyer, you can create blisterwood polearms, level 70 crushing weapons obtained virtually for free.
To summarize, if you’re going the dual-wielding route, the abyssal whip + offhand dragon weapon should do fine. If going with a two-handed weapon, Barrows weapons or the blisterwood polearm are the way to go. If shields, then abyssal whip + Bandos warshield.
This is a no-brainer. Though there is a level 70 Barrows weapon for Ranged (Karil’s crossbow), it’s not as cheap as the black salamander, another level 70 Ranged weapon that does everything Karil’s crossbow can do, but better. It doesn’t degrade, has very strong damage output, has cheaper ammunition (196 gp compared to 484 gp), and only costs 364 gp on the Grand Exchange compared to Karil’s crossbow’s 369k. Alternatively, if you like playing defensively, the dark bow is a good level 70 shieldbow to use at 79k.
For dual-wielding, it’s a little tricky, as Karil’s pistol crossbows and the Armadyl crossbow are very expensive for level 70 weapons (around 5m for a set of both pistol crossbows and 6m for the Armadyl crossbow). However, at the same place you create a blisterwood polearm in The Branches of Darkmeyer, you could also fletch yourself blisterwood stakes, level 70 weapons for dual-wielding. You can replace the main-hand blisterwood stakes with sagaies, level 72 weapons that cost 169 gp each, to increase damage output even further.
To summarize: if playing defensively, go for the dark bow. If going the two-handed approach, black salamander. For dual-wielding, dual blisterwood stakes or sagaie + offhand blisterwood stakes.
This is the fun part, where Magic becomes stupidly powerful – sometimes even more so than the Infinity +1 Swords of melee against the right target. In staves, the Staff of Light at level 75 is a great choice, as it periodically negates rune consumption and comes at a fairly low price of 269k.
Dual-wielding is where it gets very interesting, however. At level 70, you can get the wand of treachery, which does come at a relative premium at 588k. Combine that with either a ward of subjugation (152k) or an offhand weapon to further increase its potential. Good budget offhand weapons include the Tome of Frost, a Dungeoneering reward which is an offhand level 48 book that provides infinite water runes (and my personal choice), and the grifolic orb, a level 60 orb costing 29k without any other special benefits. The real kicker about dual-wielding magic, however, is the ability Concentrated Blast. It’s a three-hit combo attack that recharges extremely quickly and hits like a truck against most enemies. At times, it can even out-perform the chaotic staff if accuracy isn’t an issue.
To recap: for two-handed, Staff of Light. For dual-wielding, a wand of treachery and either the Tome of Frost or a grifolic orb. Finally, for defensive play, a wand of treachery and a ward of subjugation.
Though these weapons aren’t the best of the best, they still get the job done fairly well. In fact, I sometimes use these Infinity -1 Swords at times over my stronger weapons if I don’t feel like spending recharge money on my higher-tiered weapons, like chaotics and drygores.