Dominaria

Two-Headed Giant | Creature | Giant Warrior | Whenever Two-Headed Giant attacks, flip two coins. If both coins come up heads, Two-Headed Giant gains double strike until end of turn. If both coins come up tails, Two-Headed Giant gains menace until end of turn. | Simon Dominic

Grand Warlord Radha | Legendary Creature | Elf Warrior | Haste Whenever one or more creatures you control attack, add that much mana in any combination of {R} and/or {G}. Until end of turn, you don't lose this mana as steps and phases end. | Anna Steinbauer

Jodah, Archmage Eternal | Legendary Creature | Human Wizard | Flying You may pay {W}{U}{B}{R}{G} rather than pay the mana cost for spells that you cast. | Yongjae Choi