Earlier, it was 25% (HH, HT, TT, TH), and now, the odds have doubled
Here's what I recommend
Pokemon Trading Card Game Pocket, a new app for the TCG, has been slated for launch later this year
Akoum Battlesinger Apex Hawks Arbor Elf Battle Hurda Bojuka Bog Bojuka Brigand Brink of Disaster Bull Rush Calcite Snapper Claws of Valakut Corrupted Zendikon Cosi's Ravager Crusher Zendikon Dead Reckoning Dispel Enclave Elite Explore Feral Contest Fledgling Griffin Gnarlid Pack Goblin Roughrider Grappler Spider Graypelt Hunter Grotag Thrasher Groundswell Guardian Zendikon Halimar Depths Halimar Excavator Hedron Rover Iona's Judgment Jagwasp Swarm Join the Ranks Khalni Garden Kitesail Kitesail Apprentice Marsh Threader Mire's Toll Mysteries of the Deep Nature's Claim Pilgrim's Eye Pulse Tracker Quag Vampires Quicksand Rest for the Weary Roiling Terrain Ruthless Cullblade Searing Blaze Sejiri Steppe Skitter of Lizards Smoldering Spires Snapping Creeper Surrakar Banisher Tomb Hex Treasure Hunt Twitch Vastwood Zendikon Veteran's Reflexes Walking Atlas Wind Zendikon ther Tradewinds
Its not a competitive powerhouse, but its one of the most beloved collector sets of the decade
As well as removing, you can give creatures Indestructible using other cards