You could maybe beat it, but you’ll have to play it well and have good rune setups.
“Blob is like an attacker”. Okay, if you play blob as an attacker, you won’t get far. You need a denier, as he’s the best you’ll get for that roles. To actually kill enemies, use Cryotans mega freeze and death countdown move. Use LoA with team speed runes, Blob with speed, and Cryotan with life and maybe a stamina if you want to use his aoe mega freeze move, which costs 250 stamina