When you play with "Blade Knight", try constructing your Deck with fewer Monster Cards. Use only 16 or 17 Monster Cards, so your hand won't fill up with them.
You can also use Spell and Trap Cards that require you to discard a card to activate. "Magic Jammer" is a good example. Using these strategies will help you to quickly Summon a "Blade Knight" with 2000 ATK.