Choose one —
• Target opponent sacrifices a creature or planeswalker they control with the highest mana value among creatures and planeswalkers they control.
• Exile the top three cards of your library. Until your next end step, you may play those cards.
• Exile target player’s graveyard.
For Riveteers Charm's first mode, if the target opponent controls more than one creature or planeswalker with the highest mana value among creatures and planeswalkers they control, that player chooses which one to sacrifice as Riveteers Charm resolves.
29-04-2022
wotc
For the second mode, you must pay all costs and follow all normal timing rules for cards played this way. For example, you may play lands this way only during your main phase while no spells or abilities are on the stack and only if you haven't played a land yet this turn.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.