Name:Bridgeworks Battle
ManaCost:2 G
Types:Sorcery
A:SP$ Pump | ValidTgts$ Creature.YouCtrl | TgtPrompt$ Select target creature you control | NumAtt$ +2 | NumDef$ +2 | SubAbility$ DBFight | SpellDescription$ Target creature you control gets +2/+2 until end of turn. Then it fights up to one target creature you don't control.
SVar:DBFight:DB$ Fight | Defined$ ParentTarget | ValidTgts$ Creature.YouDontCtrl | TargetMin$ 0 | TargetMax$ 1 | TgtPrompt$ Select up to one target creature you don't control
SVar:PlayMain1:TRUE
AlternateMode:Modal
Oracle:Target creature you control gets +2/+2 until end of turn. Then it fights up to one target creature you don't control.

ALTERNATE

Name:Tanglespan Bridgeworks
ManaCost:no cost
Types:Land
R:Event$ Moved | ValidCard$ Card.Self | Destination$ Battlefield | ReplaceWith$ DBTap | ReplacementResult$ Updated | Description$ As CARDNAME enters, you may pay 3 life. If you don't, it enters tapped.
SVar:DBTap:DB$ Tap | ETB$ True | Defined$ Self | UnlessCost$ PayLife<3> | UnlessPayer$ You | StackDescription$ enters tapped.
A:AB$ Mana | Cost$ T | Produced$ G | SpellDescription$ Add {G}.
Oracle:As Tanglespan Bridgeworks enters, you may pay 3 life. If you don't, it enters tapped.\n{T}: Add {G}.
