Jinx could use a buff

The card is pretty cool but the reward for emptying your hand is too small. She can be easily removed from the board with spells and you can't even use the mega rocket after you tried so much to upgrade her.

Huh? No on contrary jinx is very strong, as baseline is is potent 4/3 quick attack for 4 is good enough, you should run discard with her you can quite consistently get to turn 5 jinx 2, also you might not have read her full reward she also makes you draw an additional card each round.. 

Try to pair her with Draven and run discard deck it was heavily nerfed this patch and for good reasons.... It was too good. 

the reward of the card is drawing 1 extra card per turn + 2 mana Swipe which can be targetable only nexus everytime you empty your hand. Super Mega Death Rocket! is the best face burst spell in the game. You need to reevaluate the card. Look Decimate, which does same thing with the reward you didn't like. it is 5 mana and nexus damage only.

I am using this list and believe me or not Jinx doesn't need any buff. It is super efficient card, you can even win against She Who Wanders decks easily. 4 mana 4/3 Quick attack with upgraded to 5/4 is already a good aggro card and this card has additionaly card draw + Face damage. I am really shocked that you want buff for her.

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If you have hard times to keep her alive, You can always use Counterfeit Copies. I didn't see anyone using that card in their Jinx lists but it is quite useful in my opinion because you have always 3+ mana after you finished your turns.