AttackerBlocked = Attacker,Blocker
AttackerUnblocked = Attacker
Attacks = Attacker
Blocks = Attacker,Blocker
ChangesZone = Card(The card that was moved)
CounterAdded = Card(The card that got the counter(s))
Cycled = Card(The card that was cycled)
DamageDone = Source(The card that dealt the damage),Target(The card or player who recieved the damage),DamageAmount(The amount of damage that was dealt) [BEWARE: Since Target can be both a card or a player object, you must take care to match it with your ValidTarget parameter!]
Discarded = Card(The card that was discarded)
Drawn = Card(The card that was drawn)
LandPlayed = Card(The card that was played)
LifeGained = Player(The player who gained life),LifeAmount(The amount of life that was gained)
LifeLost = Player(The player who lost life),LifeAmount(The amount of life that was lost)
Phase = Player(The player whose turn it is)
Sacrificed = Card(The card that was sacrificed)
SpellAbilityCast = Card(The card of the spell or ability)
Taps = Card(The card that was tapped)
TurnFaceUp = Card(The card that was turned face up)
Untaps = Card(The card that was untapped)
To use a parameter, simply call it like this: "Triggered<Parameter Name>". To get the controller or owner of a card parameter, append Controller or Owner. For example: "TriggeredAttackerController".
Parameters that don't return an integer (i.e. the ones that have "Amount" in their name) can be used for Defined$ parameters or to get additional info from, a'la "SVar:X:TriggeredBlocker$CardPower".
Parameters that DO return an integer can only be accessed via Count$ like this: "Count$TriggeredLifeAmount".
*Updated all cards that use Triggered to their new respective parameters.