Echo Form Slay The Spire - Playing echo form multiple times in a battle will cause the first x cards played each turn to be played twice, where x is the number of times that echo form was played (the buff will show the number x). Basically in hallway fights an upgraded echo form could be worse than unupgraded. There are a couple notable cases where duplicating a card such as via echo form, necronomicon, double tap, or burst may not produce the expected results, though. Web drawing an echo form on the first two turns of reptomancer encounter is bad because chances are you will not be able to play it on those turns, however echo form might be your best chance to win that fight, even if drawn on the second pass through the deck.
There are a couple notable cases where duplicating a card such as via echo form, necronomicon, double tap, or burst may not produce the expected results, though. Web drawing an echo form on the first two turns of reptomancer encounter is bad because chances are you will not be able to play it on those turns, however echo form might be your best chance to win that fight, even if drawn on the second pass through the deck. Playing echo form multiple times in a battle will cause the first x cards played each turn to be played twice, where x is the number of times that echo form was played (the buff will show the number x). Basically in hallway fights an upgraded echo form could be worse than unupgraded.