Berserk question

[Jdogtoocool]

Im not too sure about how berserk is supposed to be used.  For example if I attack with a {glistener elf} and my opponent decides not to block can I in response activate {groundswell} and {berserk} for the win?

[BlackJester]

How do you active a sorcery?  If you mean cast it, you can't cast it mid-combat.

[Fenster]

It links to {worldfire} but dont think its the spell you're refering to, yes?

[Jdogtoocool]

Yeah it's groundswell idk what I was thinking

[Oxnard Montalvo]

Assuming you put a land into play prior on the same turn then yes you could cast ground swell then berserk at instant spee before combat damage is dealt to win.  Elf would become a 5/5 with ground swell then berserk would make it a 10/5 with infect.  Pretty nasty little combo if you can draw the components early and they don't have instant speed removal or something to block with. 

[BlackJester]

Yep. See also:

{Invigorate}
{Mutagenic Growth}
{Giant Growth}

[Jdogtoocool]

Yup all that works but I'm not by any means short of ideas there's other cards like {might of old korosa} {wild might} and one of my favorites {vines of vastwood} and many many others but lets not spoil all the fun