Unstable

First strike, protection from loose lips (Nothing with an open mouth in its artwork can block, target, deal damage to, or attach to this creature.)

First strike, protection from odd collector numbers (Nothing with an odd collector number can block, target, deal damage to, or attach to this crea...

First strike, protection from two-word names (Nothing with exactly two words in its name can block, target, deal damage to, or attach to this creat...

First strike, protection from watermarks (Nothing with a watermark can block, target, deal damage to, or attach to this creature.)

Vigilance Knight of the Widget's power and toughness are each equal to the number of Order of the Widget watermarks among permanents you control.

Vigilance Knight of the Widget's power and toughness are each equal to the number of Order of the Widget watermarks among permanents you control.

As an additional cost to cast this spell, sacrifice X Contraptions. Assemble X plus one Contraptions. (To assemble a Contraption, put the top card ...

As an additional cost to cast this spell, sacrifice X Contraptions. Assemble X plus one Contraptions. (To assemble a Contraption, put the top card ...

Choose one — • Destroy each creature with an odd number of words in its name. (Hyphenated words are one word.) • Destroy each creature with an even...

Choose one — • Destroy each creature with an odd number of words in its name. (Hyphenated words are one word.) • Destroy each creature with an even...

{W}, {T}: Tap target creature without reminder text. (Reminder text is still any italicized text in parentheses that explains rules you already know.)

{W}, {T}: Tap target creature without reminder text. (Reminder text is still any italicized text in parentheses that explains rules you already know.)

When this creature enters the battlefield, you may exile target non-Horse creature you control that wasn't put onto the battlefield with this abili...

When this creature enters the battlefield, you may exile target non-Horse creature you control that wasn't put onto the battlefield with this abili...

Whenever this creature blocks, Augment {3}{W} ({3}{W}, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

Whenever this creature blocks, Augment {3}{W} ({3}{W}, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

When Riveting Rigger enters the battlefield, you may sacrifice another artifact. If you do, put two +1/+1 counters on Riveting Rigger and it assemb...

When Riveting Rigger enters the battlefield, you may sacrifice another artifact. If you do, put two +1/+1 counters on Riveting Rigger and it assemb...

State-based actions don't apply to you or other permanents you control. (You don't lose the game due to having 0 or less life or drawing from an em...

State-based actions don't apply to you or other permanents you control. (You don't lose the game due to having 0 or less life or drawing from an em...

A person outside the game chooses an attacking or blocking creature target opponent controls. That player sacrifices that creature.

A person outside the game chooses an attacking or blocking creature target opponent controls. That player sacrifices that creature.

When this creature enters the battlefield, creatures you control get +1/+1 until end of turn.

When this creature enters the battlefield, creatures you control get +1/+1 until end of turn.