There are the mobile apps, Pokmon Trading Card Game Live and Pokmon Trading Card Game Pocket , which are more accessible and convenient
In Leinore's case, you can draw a card at the beginning of your combat phase if you have three or more Creatures with different powers, and add a +1/+1 counter to one target creature
This includes , and Ice Age/Alliances , Mirage/Visions/Weatherlight , Tempest/Stronghold/Exodus , Urza's Saga/Urza's Legacy/Urza's Destiny , Mercadian Masques/Nemesis/Prophecy , Invasion/Planeshift/Apocalypse , Odyssey/Torment/Judgment , Onslaught/Legions/Scourge Mirrodin/Darksteel/Fifth Dawn and does not include base sets or pre-Ice Age sets
Red has enough impulse card draw these days that you probably dont need it, though
Even when the game gifts you some cool decks, if you want a specific card, youll have to grind enough Credits to craft it