Jace's Erasure

Whenever you draw a card, you may have target player mill a card.

Winds of Rebuke

Return target nonland permanent to its owner's hand. Each player mills two cards.

Draw three cards, then put two cards from your hand on top of your library in any order.

Whenever another snow permanent you control enters, you may have target player mill two cards.

Target player mills a card.
Draw a card at the beginning of the next turn's upkeep.

Target player mills two cards.
Draw a card.

Bojuka Bog enters tapped.
When Bojuka Bog enters, exile target player's graveyard.
{T}: Add {B}.

Return target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.

Each player discards any number of cards, then draws that many cards.
Draw a card.

Flying
Jace's Phantasm gets +4/+4 as long as an opponent has ten or more cards in their graveyard.

Whenever a player casts a blue spell, you may pay {1}. If you do, target player mills two cards.