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Its a very fun strategy to make your opponent discard

Either your card advantage will help you win the game before Phyrexian Arena squeezes the last points out of your life total, or you can offset this life loss by playing cards that gain life

However, its worth mentioning that some effect cards can only happen at certain timings of the damage step, which they usually mention explicitly in their descriptions

Little extra details also make this card feel even more like a luxury item

However, for five special Duelists, its not just about winning or losing anymore its about survival, for they are the chosen Signers who have been marked by destiny to uncover the secrets of the five dragons