Chalice of the Void [Kaladesh Inventions] SV81 You can only activate this

You can only activate this effect during your Main Phase or your opponent's Battle Phase

Your opponent must control a monster with higher ATK than this card for you to activate and to resolve this effect

Gruul raider

and sometimes it's right there in front of you

Remove from play 5 DARK monsters from your Graveyard to draw 3 cards

Chalice of the Void [Kaladesh Inventions] SV81 You can only activate thisSet: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {X}{X} Chalice of the Void enters the battlefield with X charge counters on it. Whenever a player casts a spell with mana value equal to the number of charge counters on Chalice of the Void, counter that spell.