The level 15 unlock of frost nova is a 5 second freeze, so it's far from impossible. And your not going to kill a 3K hp unit in 2 hits from abilities, your going to need some basic damage skills in there, but considering your pretty much going to be stunlcoked for 8 seconds atleast your going to die.
Items i had were.
Trors orb of revenge (+125 damage Life leech 8%, Splash +1)
Orb of Malakh (1500 hp and 500 energy -25% cooldowns)
unbreakable boots +50$ attack speed Armour +75
Boots of mayhem Armour +375 Attack speed +40%
Pantheons Blessing +900 hp's Health regen .9
Forged Armour +1200 Armour
Armour of nuadu Health +750 Health regen +1.5
Gloves of tlansui +200 damage Health +150 Health regen +.3
Thats what i had at the end of the match. the +200 damage gloves were just icing on the cake but it made life easier. My base damage ended up as somehting like 700-800 with an attack speed of .8. The 2 orbs gave me a ring of fire ability which only adds to the damage and the other one gives an ability similar to Angellic fruy or fire nova(name?)
I had the gloves that do +65 dmg in the place of the +200 damage glvoes for most of the game.
The only build that even has a rmeote chance of beating this in a one up fight is a Rook that has both cooldown items because his cooldown on the boulder is the same as it's duration. aside from that they die before they get in range or take too much damage to press the attack.