mtg how do double faced cards work DDR#594 Can someone explain this? :

Turning combat and damage-based removal into permanent board shrinkage changes how opponents block and how long their creatures stay relevant

Kumano Faces Kakkazan is a one-mana Red saga that deals one damage to each opponent and their planeswalkers the turn you play it, allows a creature you cast to enter the battlefield with an extra +1/+1 counter on the turn after, and then transforms on turn three

Or if you forget to sac them for value first

There is a real cost to playing this and so you should do so with some care

Each headliner card depicts a character that fans will instantly recognize, rendered in a beautiful portrait against a cosmic background