14 Kelsien, The Plague Starting off as a 3/3 Assassin, Kelsien, the Plague gets +1/+1 for each experience counter you have
Use evasive creatures to guarantee Treasure triggers
cards as active and this Character gains +1000 power during this turn
Elvish Mariner is a very solid three-drop, and one that ends up in quite a few decks not least Elrond Master of Healing builds
Artifacts: 4x Chandras Regulator 4x Mazemind Tome 1x Mirror Box Instants: 4x Chandras Triumph 3x Flame-Blessed Bolt 4x Spikefield Hazard 1x Valakut Awakening Sorceries: 2x Anger of the Gods 4x Light Up the Night Planeswalkers: 4x Chandra, Acolyte of Flame 2x Chandra, Fire Artisan 2x Chandra, Flamecaller 2x Chandra, Heart of Fire 1x Chandra, Pyromaster 3x Chandra, Torch of Defiance Land: 19x Mountain Sideboard: 2x Abrade 2x Damping Sphere 2x Fry 4x Legion Warboss 3x Soul-Guide Lantern 2x Staff of the Flame Magus Sultai Emerge - Sacrifice weak creatures to cast strong ones The previous deck on the list has no creatures inside
You have multiple cards in the list with no Counter effect, so you can trash one of those