Yeah. It should be noted that you've not generated any value yet with those 3 cards, and there's little additional effect on the 4th card. It's only from card 5 onwards that you're really starting to grind out additional value (assuming cards 4+ are creatures). The combo does build a lot of momentum once you finally get it going, but it takes a lot of time and work to get there. So yeah, not competitive in itself.

You'll want a ton of tutoring, at the very least, but you also need defenses, mana acceleration, value creatures... I'm not saying it's impossible to make the deck work, but outside of casual, you'll face an uphill battle.