Quotes / Underestimating Badassery

"Advantage of being salarian. Turian, krogan, vorcha, all obvious threats. (sharp inhale) Never see me coming."
Mordin Solus, Mass Effect 2

"'Don't worry about [the Winchesters]?'" What, like Lucifer didn't worry? Or Michael, or Lilith, or Alastair, or Azazel didn't worry? Am I the only game piece on the board who doesn't underestimate those denim-wrapped nightmares?!"
Crowley, Supernatural

Charlie: Your new counterpart: Parson Gotti, Lord Hamster of Gobwin Knob. The more-than-perfect warlord. He is the most dangerous being in Erfworld.
Tramennis: What, behind the potato?
Charlie: I'll send you a dossier.

Sometimes, mermaids can devour tigers.
—Kagura Mikazuchi showing Sabertooth guild who's boss, FairyTail

Ace: Who are you calling small!? [proceeds to attack Dalek with a baseball bat]

Soldier: The first thing you notice about the doctor of war is he's unarmed. For many it's also the last.

You fools!! In battle, if you let your opponent see you're winded, it's the same as throwing away most of your chance of victory!! Watch carefully and learn the intensity of the battlefield...
—Random Mook believing Guts to be tired during his Extreme Melee Revenge, Berserk

Loki: Enough! You are all of you beneath me. I am a god, you dull creature. I will not be bullied by—
Hulk: Puny god.

A lot of people have thought they could handle the Undersiders.
Citrine, Worm

Meh, I can take her
Jack Slash, Worm

Castiel: Don't worry about the Winchesters.
Crowley: Don't worry about...what, like Lucifer didn't worry? Or Michael, or Lilith, or Alastair, or Azazel didn't worry? Am I the only game piece on the board who doesn't underestimate those denim-wrapped nightmares?!

"The Commander was wrong; you are dangerous! Too dangerous to leave alive!"

Jeong-Jeong: Nothing I taught you prepared you for the Avatar.
Zhao: I think I can handle a child.

Kouji Kabuto: You're not getting away, Gadlight! We're gonna settle accounts today!
Gadlight Meonsam: “You're not getting away”? Don't make me laugh, Earthling! Looks like you still don't understand the gap in power between us! Someone like you doesn't have a snowflake's chance in Hell of beating me!
Kouji: You know about all of the villains who've said that and underestimate us!? Not a Black Hole, Fallen Angels, the Mycenae, or Sphere Reactors have been able to stop us!
Gadlight: Then I'll have to shove your faces down into despair!
Kouji: Just try it! We won't hand our future to someone like you!
—Scenario 58, Third Super Robot Wars Z: Jigoku-hen

You've gone far enough. Neloth is a fool to think he could send some low life to finish me off.
Ildari Sarothril to the Dragonborn, The Elder Scrolls V: Skyrim, Dragonborn

Caitlin: Barry has superpowers. Oliver has a bow and arrow.
Diggle: Do you have any idea how many people Oliver has killed using that bow and arrow?

"You and your kind may play mortals for weaklings and fools, and that may be fitting for some, but you underestimate me."

White Martian: You must be Aquaman. What can you do? You can't fly or run fast, can you? Your skin may be tough, but not so tough I can't just cut through. What can you do, apart from talk to fish?
Aquaman: Let me think. I can locate your brain's basal ganglia, the part you inherited from your marine ancestors. And, just for starters, I can give you a seizure.
* The martian collapses to the ground, convulsing*

Ben McKittrick: You know, I have heard about you. You don't feed. You won't be strong enough to defeat me. (attacks) Is that all you got?
Stefan: No. (grabs a flamethrower) I got this too. (roasts him alive)

Artanis: Have faith, Zeratul! You almost sound as if you fear these humans. What are they to such as we? Was it not we who defeated the dreaded Overmind?
Zeratul: Yes, Artanis, we did vainquish the Overmind. But we did so with the help of humans. Do not be so quick to underestimate them.
StarCraft : Brood War

You made the mistake of thinking of me as a mere powerless girl, Mr. Mage.

You're just like my father! You underestimated her and she bested you! She is a Heterodyne! Doesn't that mean anything to you?!?
Gilgamesh Wulfenbach, dressing down Captain Vole after the latter got utterly trounced by the titular heroine Agatha, Girl Genius

Einhart: Huh? Vivio's mothers will be in the mock battle?
Vivio: Yep! They're always pushing themselves!
Einhart: Even though those two seem like beautiful, family-oriented, warm-hearted mothers... I'm a bit surprised that they would participate in a magic battle.
(Nove nearly bursts into laughter)
Vivio: I wouldn't say they just "participate."

Karnak: Well... I was expecting them to send someone. But not you, Ms Grey.
Jean Grey: No? Who did you expect?
Karnak: I thought they would send one of the warriors. Logan, maybe.
Jean Grey: My feelings are hurt, Karnak. I've always considered myself a warrior.
Karnak: You are a child. And you are out of your depth, Ms. Grey. Peharps if you'd snuck up on— Wait— that's odd... Déjà Vu.
Jean Grey: That's because it's the fourth time we've had this same conversation. I actually arrived six hours ago.
Karnak: Oh. I'll get out of this, you know, Ms. Grey.
Jean Grey I know. But by then it will be too late.

"[Sunburst]’s been a superheroine for at least forty years! Forty YEARS. In that time, she’s had dozens if not hundreds of dynamorph challenges; by this time, she’s probably got one of the most powerful dynamorphs in the world. And in all that time, she’s never been the acknowledged leader of the California Crusaders. BUT, she’s always the ‘elder statesman’, the one that everyone listens to, the one with the final say.
"Mother, Sunburst is DANGEROUS! The only reason that a woman like that would allow herself to be disregarded as a giddy bimbo is that that was exactly how she wanted to be seen! She is underestimated, which means that she can get away with murder when she wants to. During that first summer [as Sunburst's ward], I was constantly trying to get away, and I could never pull it off, yet it always, ALWAYS looked like a pure fluke, and I could never quite be sure whether it was just bad luck or not. Most of the chessplayers who could pull something off like that have an ego that needs to rub their sucker’s face in exactly how badly they’ve been played. Sunny doesn’t have that.”
— Nacht , "Silent Nacht, part 2", Whateley Universe