Time Sieve

{T}, Sacrifice five artifacts: Take an extra turn after this one.

Drown in Dreams

Choose one. If you control a commander as you cast this spell, you may choose both instead.
• Target player draws X cards.
• Target player mills twice X cards.

Visions of Beyond

Draw a card. If a graveyard has twenty or more cards in it, draw three cards instead.

Aetherize

Return all attacking creatures to their owner's hand.

Psychic Corrosion

Whenever you draw a card, each opponent mills two cards.