Simple tricks of defense.
When a bucket is lost in a well what normally in a village they do to recover this bucket. They keep a multi angled hook catch just like an octopus . It has small small hooks at different angles. It is lowered in the well the bucket gets entangled in any one of the hooks.
Similarly for defense you must not stick to any one strategy however plausible and strong it may look. Study each and every word of the documents and find as many faults as possible. You will get numerous mistakes of the opponent.
Please do not put much reliance on citations of higher courts since many times even applicable but lower courts may disagree. So in over confidence due to dependence on citations other opportunities of defense are lost.