Which Keyword Abilities "Stack"?

[Double-O-Scotch]

So {armadillo cloak} is stackable but lifelink is not. Correct?

[Gorzo]

So {armadillo cloak} is stackable but lifelink is not. Correct?

You gots it.

[Redrighthand]

So if I have a {greenweaver Druid} and a level 5 {joraga tree speaker} in play together, does the Druid now tap for 4 G?

[BlackJester]

Nope. It'll have two versions of the same ability: "{T}: add {G}{G} to your mana pool."

[Justink]

Weird question, but I think it still kind of fits into the "stacking abilities" question:  if I have two {corpsejack menace} out on the field and I scavange a {deadbridge Goliath}, does one of my {corpsejack menace} get +20 +20?

[Gorzo]

Weird question, but I think it still kind of fits into the "stacking abilities" question:  if I have two {corpsejack menace} out on the field and I scavange a {deadbridge Goliath}, does one of my {corpsejack menace} get +20 +20?

Yup. Now activate that {rogue's passage} and swing!

[Malleo]

Does {Pyreheart Wolf's} ability stack? And on the same note does  {Madcap Skills}

[Gorzo]

Does {Pyreheart Wolf's} ability stack? And on the same note does  {Madcap Skills}

The +3/+0 on madcap will stack. However the blockers clauses on both of those cards would be a redundancy - no matter how many copies of "this creature can only be blocked by two or more creatures" you put on your attacker, it will say "this creature can only be blocked by two or more creatures."