Well, I suggested one back in the day. No-one really took it seriously though. Can't say why.
Meme Control1
LOLcat: Ranged, Foe Immobilize, Minor DoT (Lethal)
Summons an adorable little cat at the feet of your enemy, which claws lightly at their toes while immobilizing them with sheer cuteness.
1
Leeroy Jenkins: Ranged, Foe Confuse, -ToHit
Your enemy develops an unjustified and extremely overblown sense of confidence. They end up running around the battlefield like an idiot and doing more damage to their own allies than to you.
2
Rickroll: Ranged, Foe Hold, Minor DoT (Smash/Energy)
You capture your enemy in an unshakeable force field and raise them high into the air. You are never going to give them up, you are never going to let them down.
6
This Is Striga: Melee, Moderate Dmg (Smash), Foe Knockdown
Raising one foot high, you kick your target backward into... well, into the ground. What else would be there, a giant bottomless hole? You watch too many movies.
8
Not Sure If Serious: Ranged, Foe -Speed, -Rech, -Dmg
You question your opponent's dedication so thoroughly that they start to question it themselves, slowing them down and weakening their attacks temporarily.
12
Get Off My Lawn: Ranged (Cone), Moderate Dmg (Smash/Fire), Foe Knockback
Those freaking kids are messing up the grass again. Let off some steam, and show them what you think of trespassers.
18
It's A Trap: Ranged (Targeted AOE), Foe Immobilize, -Speed, Confuse
Your opponents stop in their tracks, bewildered. The ones who can still move are reacting very slowly, unsure what just happened or who their real enemy is.
26
Over 9000: PBAOE, Foe Fear, -Regen, -Recov
This power inspires terror and awe in your opponents, crippling their ability to recover from other attacks.
32
Nyan Cat: Summon Nyan Cat: Taunt (PBAOE), Intangible, Special
Calls forth a mutant hybrid pastry-feline creature that assaults your enemies in the worst way possible... with relentless overly-cute singing. It has no attacks, rather it emits a strong taunt aura, then turns itself intangible. Foes will gather around it, unable to look away and unable to make it stop, until eventually their heads explode.