You can buy big bones at the grand exchange.
Bury large bones.
Mage tanks can choose to or not to train prayer, but I suggest that you do you train prayer, at least to the protection prayers, as they are very useful in combat.
A good way to train combat in Runescape is to go to Soul wars. whats the best thing if im nonmembers
That depends. Are you a member?
You need to use a code for bones.
Wood cutting. In my opinion, Prayer is arguably the fastest skill to train. However, Prayer is also very expensive. The same applies to Herblore and Construction.
Dune buggy racing.
do everything at once
A good way for a company to train for incident management is to have a orientation on what is safe or not safe. Another good idea might be to have a reward for going a certain amount of time without an incident.
Bandits in the Bandit Camp in the Desert are great to train on as long as you have 43+ prayer and prayer potions.
A good version of a formal prayer is the Lord's prayer
You don't need armour to train prayer, it's only burying bones. If you want to train combat with prayer bonuses though, the best f2p stuff to wear is monk robes, a holy symbol, an explorers ring, and a mace (corrupt dragon is the best, but it only lasts 30 minutes, so use rune if you can).