Revive cards need a fix

Why does it costs 3 revive cards to revive 1 time,i think it's a waste, i suggest to use 1 revive card to revive 1 time, please consider this option

I think it actually costs only 1 revive card to revive once. The 3 is the number of gold coins required to revive. So if you don't have a revive card, you can use 3 gold coins instead.

It costs 1 card on forest then 2 cards on fortress, 3 on ice hill and so on

I think it actually costs only 1 revive card to revive once. The 3 is the number of gold coins required to revive. So if you don't have a revive card, you can use 3 gold coins instead.

Good point, haypi may use this way to earn more.