Very Cryptic Command

Choose two —
• Return target permanent to its controller's hand.
• Draw two cards, then discard a card.
• Change the target of target spell with a single target.
• Turn over target nontoken creature.

Unstable

Choose two —
• Switch target creature's power and toughness until end of turn.
• Target creature can't be blocked this turn.
• Draw a card. If that card's art is by Wayne England, you may reveal it and draw another card.
• Assemble a Contraption.

Choose two —
• Untap two target permanents.
• Tap each permanent target player controls with exactly one word in its name.
• Discard all the cards in your hand, then draw that many cards.
• Return target instant or sorcery card from your graveyard to your hand.

Choose two —
• Draw a card from an opponent's library.
• Copy target instant or sorcery spell. You may choose new targets for the copy.
• Until end of turn, target creature loses all abilities and becomes a blue Frog with base power and toughness 1/1.
• Create a 1/1 colorless Gnome artifact creature token.

Choose two —
• Counter target black-bordered spell.
• Return target creature to its owner's hand.
• Untap each permanent you control with a watermark.
• Roll two six-sided dice. Target player puts the top X cards of his or her library into his or her graveyard, where X is the total of those results.

Choose two —
• Counter target black-bordered spell.
• Return target creature to its owner's hand.
• Untap each permanent you control with a watermark.
• Roll two six-sided dice. Target player mills X cards, where X is the total of those results.

To turn over a creature means to physically turn the card over. If the result is a face-down card, it’s a colorless 2/2 creature, the same as one would get from using the morph ability. Turning a face-down card over results in it being turned face up. Any abilities that trigger when it’s turned face up will work. Turning a double-faced card over is the same as transforming it. Any abilities that trigger when you transform it will work. Turning a combined host/augment creature over will result in a big colorless 2/2 creature represented by two cards. Turning a melded creature over will result in the two cards breaking apart and forming two separate creatures, but they’ll probably just get right back together. Turning B.F.M. (Big Furry Monster) over is the same as turning a combined creature over.