Sarkhan, Soul Aflame (Showcase) [March of the Machine: The Aftermath] Psychic[×2] She has to carefully manage

She has to carefully manage which form she is in for the situation as being caught in the wrong form at the wrong time can spell for dire consequences

Having populated the Milky Way Galaxy

Sacrifice a Slug: Draw a card

Set: Rise of the Eldrazi Type: Creature — Hydra Rarity: Mythic Cost: {G}{G}{G}{G}{G}{G}{G}{G} This spell costs {G} less to cast for each green creature you control

Guided by Fate or another enchantment enters the battlefield under your control

Sarkhan, Soul Aflame (Showcase) [March of the Machine: The Aftermath] Psychic[×2] She has to carefully manageSet: March of the Machine: The Aftermath Type: Legendary Creature Human Shaman Rarity: Mythic Cost: {1}{U}{R} Dragon spells you cast cost 1 less to cast. Whenever a Dragon enters the battlefield under your control, you may have Sarkhan, Soul Aflame become a copy of it until end of turn, except its name is Sarkhan, Soul Aflame and it's legendary in addition to its other types.