Not bad but the problem is you won't beat many with a defender deck. I play modern and you need the following:
1. To be able to win in 5 turns
2. Be able to
disrupt your opponent
3. Be prepared to play $1000 decks.
Need to diverse. Use cards that synergize well and let you do multiple things in a turn.
Took me a while but I've built a $100 mono green aggro deck that beat a $1200 deck.
Just some friendly advice