XIV - Temperance

Tarot (There may only be one copy of this card in a deck. This card costs {1} less for each permanent with tarot in play.)
The {2} in this card's mana cost must be paid with
a pair of enemy colors. (The enemy colors are {w/b}, {r/w}, {u/r}, {g/u}, and {b/g}.)
Each player loses X life, then you gain the total life lost, then all creatures get +X/+2 and first strike until the end of the turn, then put X +1/+1 counters on X target creatures, then each player sacrifices half X permanents, ro