Add Welcome the Darkness (YDSK) (#6346)

forge-gui/res/cardsfolder/upcoming/welcome_the_darkness.txt

@@ -0,0 +1,10 @@
+Name:Welcome the Darkness
+ManaCost:X B
+Types:Instant
+A:SP$ Draw | Cost$ XMin1 X B | NumCards$ X | SubAbility$ DBToken
+SVar:DBToken:DB$ Token | TokenAmount$ 1 | TokenScript$ b_x_x_demon_flying | TokenOwner$ You | TokenPower$ X | TokenToughness$ X | SubAbility$ DBSetLife | SpellDescription$ X can't be 0. Draw X cards. Create an X/X black Demon creature token with flying. Your life total becomes X. You can't gain life for the rest of the game.
+SVar:DBSetLife:DB$ SetLife | Defined$ You | LifeAmount$ X | SubAbility$ DBEffect
+SVar:DBEffect:DB$ Effect | StaticAbilities$ CantGainLife | Duration$ Permanent
+SVar:CantGainLife:Mode$ CantGainLife | ValidPlayer$ You | Description$ You can't gain life for the rest of the game.
+SVar:X:Count$xPaid
+Oracle:X can't be 0.\nDraw X cards. Create an X/X black Demon creature token with flying.\nYour life total becomes X.\nYou can't gain life for the rest of the game.