After hitting with Lightning, you can then cast Thunder Magic for any of its tiers
This program is huge, has a lot of functionality, and can be a little daunting for the new player

3 Bleeding Effect Blightwing Bandit Bloodthirsty Conqueror Bone Picker Bonepicker Skirge Bow of Nylea Cairn Wanderer Covetous Geist Crystalline Giant Cultist of the Absolute Damocles Base, Sword of Kang Deadly Recluse Death-Hood Cobra Deathgaze Cockatrice Dragonlord Silumgar Dreadwing Scavenger Eater of Virtue Embodiment of Agonies Entropic Battlecruiser Eye of Nidhogg Feral Deathgorger Feral Deathgorger Fetid Imp Fleetfeather Cockatrice Fumulus, the Infestation Green Goblin, Revenant Grendel, Spawn of Knull Gutmorn, Pactbound Servant Henrika, Infernal Seer Hornet Nest Hornet Queen Ice-Fang Coatl Indominus Rex, Alpha Kathril, Aspect Warper Kaya, Geist Hunter Kessig Recluse Kura, the Boundless Sky Majestic Myriarch Malakir Familiar Midnight Assassin Moonstone Harbinger Multiclass Baldric Needlethorn Drake Neriv, Crackling Vanguard Nighthawk Scavenger Nightveil Predator Nu and Sumi, Career Criminals Odric, Blood-Cursed Odric, Lunarch Marshal Old-Fashioned Vampire Orzhov Enforcer Pestilent Kathari Poison-Tip Archer Qarsi Revenant Rayami, First of the Fallen

If you purchase your card catalog secondhand, you should inspect it carefully
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Two commanders are better than one, since they unlock new card options and new synergies, as well as ensuring you always have a creature to play out