Thought Scour puts a random card into your hand, Opt lets you choose a known card or the mystery box, Sleight of Hand is the same two-card choice with an open mystery box, and Serum Visions lets you keep both or neither of the two cards you see
Brawl Not Legal Vintage Legal Timeless Not Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Toolbox Notes and Rules Information for Energy Vortex: Does a flat 3 damage, not 3 damage per counter
Go head over to your local store and get ready to play
Normal combat damage happens with poison creatures but the player just doesnt gain a new poison counter when the trigger resolves
You can also mix both and become the famous Jack of all trades, master of none
Ice-Fang Coatl Ice-Fang Coatl is just Simic Baleful Strix with a snow land prerequisite, and thats just fine and dandy