I made JavaScript code to find a random champ, Summoner spells, and role.

Code
function randomChamp() {

const lolChamps = ['Aatrox', 'Ahri', 'Akali', 'Alistar', 'Amumu', 'Anivia', 'Annie', 'Ashe', 'Aurelion Sol', 'Azir', 'Bard', 'Blitzcrank', 'Brand', 'Braum', 

'Caitlyn', 'Camille', 'Cassiopeia', 'Cho\'Gath', 'Corki', 'Darius', 'Diana', 'Dr. Mundo', 'Draven', 'Ekko', 'Elise', 'Evelynn', 'Ezreal', 'Fiddlesticks', 

'Fiora', 'Fizz', 'Galio', 'Gangplank', 'Garen', 'Gnar', 'Gragas', 'Graves', 'Hecarim', 'Heimerdinger', 'Illaoi', 'Irelia', 'Ivern', 'Janna', 'Jarvan IV', 

'Jax', 'Jayce', 'Jhin', 'Jinx', 'Kai\'Sa', 'Kalista', 'Karma', 'Karthus', 'Kassadin', 'Katarina', 'Kayle', 'Kayn', 'Kennen', 'Kha\'Zix', 'Kindred', 'Kled', 'Kog\'Maw', 

'LeBlanc', 'Lee Sin', 'Leona', 'Lissandra', 'Lucian', 'Lulu', 'Lux', 'Malphite', 'Malzahar', 'Maokai', 'Master Yi', 'Miss Fortune', 'Mordekaiser', 

'Morgana', 'Nami', 'Nasus', 'Nautilus', 'Nidalee', 'Nocturne', 'Nunu & Willump', 'Olaf', 'Orianna', 'Ornn', 'Pantheon', 'Poppy', 'Pyke', 'Quinn', 'Rakan', 

'Rammus', 'Rek\'Sai', 'Renekton', 'Rengar', 'Riven', 'Rumble', 'Ryze', 'Sejuani', 'Shaco', 'Shen', 'Shyvana', 'Singed', 'Sion', 'Sivir', 'Skarner', 'Sona', 

'Soraka', 'Swain', 'Syndra', 'Tahm Kench', 'Taliyah', 'Talon', 'Taric', 'Teemo', 'Thresh', 'Tristana', 'Trundle', 'Tryndamere', 'Twisted Fate', 'Twitch', 'Udyr', 'Urgot', 

'Varus', 'Vayne', 'Veigar', 'Vel\'Koz', 'Vi', 'Viktor', 'Vladimir', 'Volibear', 'Warwick', 'Wukong', 'Xayah', 'Xerath', 'Xin Zhao', 'Yasuo', 'Yorick', 'Zac', 'Zed', 

'Ziggs', 'Zilean', 'Zoe', 'Zyra'];

    var randomNumber = Math.floor(Math.random() * lolChamps.length);

    console.log('Random Champ is: ' + lolChamps[randomNumber]);

}

function randomRoles () {

    const lolRoles = ['Top', 'Jungle', 'Mid', 'ADC', 'Support'];

    var randomNumber = Math.floor(Math.random() * lolRoles.length);

    console.log('Random Role is: ' + lolRoles[randomNumber]);

}

function randomSS() {

    var lolSS = ['Ghosts', 'Heal', 'Cleanse', 'Teleport', 'smite', 'Barrier', 'Ignite', 'Exaust', 'Flash'];

    var randomNumber = Math.floor(Math.random() * lolSS.length);

    var firstSS = lolSS[randomNumber];

    lolSS.splice(firstSS, 1);

    var secondSS = lolSS[randomNumber];

    console.log(`D Summoner Spell is: ${firstSS} & F Summoner Spell is ${secondSS}. `)

}

function getInfo() {

    randomChamp();

    randomRoles();

    randomSS();

}

getInfo();