Surrakar Spellblade [Rise of the Eldrazi]

Set: Rise of the Eldrazi Type: Creature — Surrakar Rarity: Rare Cost: {1}{U}{U} Whenever you cast an instant or sorcery spell, you may put a charge counter on Surrakar Spellblade.Whenever Surrakar Spellblade deals combat damage to a player, you may draw X cards, where X is the number of charge counters on it.