This works specifically, whenever you cast instants or spells on a creature you control, allowing you to exile the card after resolving it, instead of putting it in your graveyard to then be put back into your hand on the next end step
You may put a creature card from among them onto the battlefield
His other ability synergizes with this, creating a treasure token every time his controller casts a spell from exile
Lathril, Blade of the Elves
They are better than Scion since they are harder to answer and then cheaper and then they always will trigger even when your Monarchy has been taken away
Creature - Goblin Gollum, Obsessed Stalker Skulk (This creature can't be blocked by creatures with greater power.) At the beginning of your end step, each opponent dealt combat damage this game by a creature named Gollum, Obsessed Stalker loses life equal to the amount of life you gained this turn