No system should refund all the cost, just the basic "necessary" costs, for example the costs of one lawyer for small cases or a small team of lawyers for large

No system should refund all the cost, just the basic "necessary" costs, for example the costs of one lawyer for small cases or a small team of lawyers for large cases. I think it is how it works in many countries. Otherwise, what would prevent a party that is sure that it will win to hire 1000 lawyers in the last day of trial just to inflate the costs of the loosing party?