Name:Screeching Bat
ManaCost:2 B
Types:Creature Bat
PT:2/2
K:Flying
T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | TriggerZones$ Battlefield | Execute$ TrigTransform | OptionalDecider$ You | TriggerDescription$ At the beginning of your upkeep, you may pay {2}{B}{B}. If you do, transform CARDNAME.
SVar:TrigTransform:AB$ SetState | Cost$ 2 B B | Defined$ Self | Mode$ Transform
AlternateMode:DoubleFaced
Oracle:Flying\nAt the beginning of your upkeep, you may pay {2}{B}{B}. If you do, transform Screeching Bat.

ALTERNATE

Name:Stalking Vampire
ManaCost:no cost
Colors:black
Types:Creature Vampire
PT:5/5
T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | TriggerZones$ Battlefield | Execute$ TrigTransform | OptionalDecider$ You | TriggerDescription$ At the beginning of your upkeep, you may pay {2}{B}{B}. If you do, transform CARDNAME.
SVar:TrigTransform:AB$ SetState | Cost$ 2 B B | Defined$ Self | Mode$ Transform
Oracle:At the beginning of your upkeep, you may pay {2}{B}{B}. If you do, transform Stalking Vampire.
