Rograkh, Son of Rohgahh [Secret Lair Drop Series] SV8 and it can't be sacrificed

and it can't be sacrificed this turn

Set: Modern Horizons 3 Type: Legendary Creature — Elemental Shaman Rarity: Mythic Cost: {2}{R}{R} You don't lose unspent red mana as steps and phases end

No evidence

1 Rulebook

Sacrifice three other creatures: Exile Elesh Norn

Rograkh, Son of Rohgahh [Secret Lair Drop Series] SV8 and it can't be sacrificedSet: Secret Lair Drop Series Type: Legendary Creature Kobold Warrior Rarity: Rare Cost: {0} First strike, menace, trample Partner (You can have two commanders if both have partner.) Rograkh couldn't bear to watch his father pillage his own people. Not when there were so many other people they could pillage instead.