MTG Mill Deck by Dean Percy

Sunburst (This enters with a charge counter on it for each color of mana spent to cast it.) {2}, Sacrifice this artifact: Destroy each nonland permanent with mana value equal to the number of charge counters on this artifact.

Replicate {1} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.) Counter target triggered ability or colorless spell.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Choose target card in a graveyard other than a basic land card. Search its owner's graveyard, hand, and library for all cards with the same name as that card and exile them. Then that player shuffles.

Flash As this artifact enters, choose a card name. Spells with the chosen name cost {3} more to cast. Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Exile all creature cards from target player's graveyard. You gain 3 life for each card exiled this way.

As an additional cost to cast this spell, pay X life. All creatures get -X/-X until end of turn.

Creatures with power greater than the number of cards in your hand can't attack.