Web-slinging (You may cast this spell for if you also return a tapped creature you control to its owner's hand.)Counter target instant spell, sorcery spell, or triggered ability.
The "legend rule" doesn't apply to Spiders you control.Whenever you cast a spell from anywhere other than your hand, you may copy it. If you do, you may choose new targets for the copy. If the copy is a permanent spell, it gains haste. Do this only once each turn.
Whenever you cast a blue spell, if Hydro-Man is a creature, he gets +1/+1 until end of turn.At the beginning of your end step, untap Hydro-Man. Until your next turn, he becomes a land and gains ": Add ." (He's not a creature during that time.)
When Black Cat enters, look at the top nine cards of target opponent's library, exile two of them face down, then put the rest on the bottom of their library in a random order. You may play the exiled cards for as long as they remain exiled. Mana of any type can be spent to cast spells this way.
This land enters tapped.When this land enters from a graveyard, you lose 2 life.: Add , , or .Mayhem (You may play this card from your graveyard if you discarded it this turn. Timing rules still apply.)
This land enters tapped.: Add , , or ., Return a tapped creature you control to its owner's hand: Put this card from your hand onto the battlefield. Activate only as a sorcery.
You may have Chameleon enter as a copy of a creature you control, except his name is Chameleon, Master of Disguise.Mayhem (You may cast this card from your graveyard for if you discarded it this turn. Timing rules still apply.)