mtg arena only cards Keruga, the Macrosage | Ikoria: Lair of Behemoths | Modern All MTG Arena Jumpstart: Historic

Alternatively, you can use bounce lands which auto-return to hand, and either make infinite kitties or grow your team arbitrarily big with Felidar Retreat, or just straight up murder everyone by exiling your library with Valakut Exploration

You receive two of each mana to help you cast five spells that have exactly three colors

Choices made for permanents as they entered the battlefield are remembered when they phase in

UL03_XR Land B ocT: Add B to your mana pool and CARDNAME deals 1 damage to you

Before taking mulligans, shuffle all but one of your hands into your library

Rakdos Cackler is a good start since that gives you a 3/3 and then 4/4, limiting potential answers, and Tormented Hero is another reasonable target