Drawing cards is great, but you'll want to be careful here—"Weird Insight" isn't actually a recognized Magic keyword or ability. You may be thinking of a specific card, or possibly conflating a card name with a mechanic.
There's a sorcery called Weird Insight (from Theros Beyond Death): it lets you draw two cards, and as an additional cost you can discard a creature or enchantment card to reduce its cost by two generic mana. But that's a single card, not a reusable ability.
If you meant a different term—like a keyword such as Surveil, Scry, or Investigate—let me know which one and I'll break down exactly how it works, the common rules mistakes, and why it matters in a Commander game. Happy to clarify whatever you're actually digging into.