For one colorless and one green, along with tapping and sacing, you can draw a card
With golden light spilling through the tube and the effect of a water-splashed lens, the card gleams with the effect of a vibrant tropical day
As a very general rule for Limited, I would look to play something like this: 1 mana: 02 2 mana: 46 3 mana: 35 4 mana: 24 5 mana 13 6+ mana: 02 That's far from hard and fast, but it's a good place to start

Abandon Attachments Abzan Charm Agency Coroner Aggressive Mining Alhammarret's Archive All-Seeing Arbiter Alms Collector Alpharael, Dreaming Acolyte Altar's Reap Arm-Mounted Anchor Artificer's Epiphany Artistic Refusal Arwen's Gift Atemsis, All-Seeing Azorius Locket Azra Oddsmaker Bad Deal Battle of Frost and Fire Battlewing Mystic Bazaar Trademage Bazaar of Baghdad Behold the Multiverse Behold the Unspeakable Bequeathal Big Score Biomechan Engineer Birth of the Imperium Bitter Reunion Black Widow, Intel Expert Blighted Cataract Blitzball Blood Scrivener Bold Biochemist Boros Locket Bringer of the Blue Dawn Brokers Charm Byway Barterer Calamitous Tide Careful Study Carnival Elephant Meteor Case of the Crimson Pulse Case the Joint Catalog Ceta Sanctuary Chart a Course Chemister's Insight Cipherbound Spirit Circle of Power Citanul Woodreaders Clandestine Work Clockwork Fox Cloudblazer Coastal Discovery Commence the Endgame Conch Horn Consecrated Sphinx Contact Other Plane Corrupted Conviction Costly Plunder Counsel of the Soratami Courier's Capsule Cruel Truths Crushing Disappointment Cult of Skaro Curator's Ward Damocles Base, Sword of Kang Dangerous Wager Daredevil Dragster Deadly Dispute Deadly Dispute Decode Transmissions Defacing Duskmage

Its a welcome reprint, but players will need to pair Shadowheart with a green Background enchantment from Battle for Baldurs Gate to use all five cards in the same deck