Embodiment of Reprisal

Whenever one or more creatures deal combat
damage to a player, the defending player may
pay {x}. If they do, that player gets an extra
combat phase after this one and untaps up to
X target creatures they control. Those creatures
must attack next combat if able. Players may do
this only once each turn.
Whenever a player attacks during an extra
combat, create a 3/1 red Elemental creature
token with haste.