Mechanics Warehouse: Mechanics
Penumbra:
Whenever this creature dies, if it's not a token, put a token onto the battlefield that is a copy of it.
Used on 1 cards:
Ikian Fiendrat
Hivemind:
When this card enters the battlefield you may look at the top card of your library. If it's a creature card, you may reveal it and put it into your hand.
Used on 1 cards:
Midon Grunt
Magnify:
If one or more counters would be placed on this card, twice that many counters of that type are placed on it instead.
Used on 1 cards:
Burst-Head Hydra
Mechanic used on creatures that have a proclivity towards mutation
Extract:
Whenever this permanent deals damage to a player, that player puts that many cards from the top of his or her library into his or her graveyard.
Used on 1 cards:
Boneheap Bruiser
Pretty unoriginal brain-sucking mechanic. Would not actually be used to mill people out, just to use the graveyard as a resource.
Permeate:
Other creatures you control have all activated abilities of this permanent.
Used on 1 cards:
Boughmender Mentor
Spreads the love around a bit. A little complex.
Blitz:
You may cast this spell for its blitz cost. If you do, it gains haste. Sacrifice it at the beginning of the next end step.
Used on 1 cards:
Screeching Specter
Another pretty unoriginal mechanic, for a fast, pseudo-evoke feel.
Emergence:
PARAM1, Sacrifice this creature: Search your library for a creature card with converted mana cost equal to 1 plus this card's converted mana cost, put that card onto the battlefield, then shuffle your library.
Used on 1 cards:
Birthing Bear
Birthing Pod attached to creatures.
Vivify:
PARAM1: This permanent becomes a 2/2 creature in addition to its other card types until the beginning of the next end step.
Used on 2 cards:
Vigorous Anthem, Sepulcher Guardian
Mechanic used to show lifeless permanents or intangible enchantments becoming creatures temporarily. (was "manifest")
Quadruplicate:
You may cast this spell for its quadruplicate cost. if you do search your library for any number of cards with the same name and cast those cards without paying their mana costs, then shuffle your library.
Used on 1 cards:
Steward of Glogg
Kind of Replicate + Squadron Hawk.
Martyrdom:
If another creature you control would be destroyed, instead you may remove all damage from it and sacrifice this creature.
Used on 1 cards:
Devoted Bodyguard
Impervious:
Prevent all combat damage that would be dealt to this creature.
Used on 1 cards:
Enduring Ancestor
Inquisitive:
PARAM1: Change a target of target spell or ability to this creature.
Used on 1 cards:
Spell Cleanser
Banner:
When this creature enters the battlefield, other creatures you control get +1/+1 until end of turn.
Used on 1 cards:
Marshalling Dissident
Deplete:
You may tap PARAM1 lands rather than pay this card's mana cost. Those lands don't untap during your next untap step.
Used on 1 cards:
Dorsian Clubtusk
In card text or details pages, write the mechanic's code name (playtest name) between square brackets, like "[Crittercast]", "[Bushido 1]" or "[Delay 4 {2}{R}{R}]". It will be expanded to the mechanic's name plus reminder text, such as "Suspend 4 – 
. (Rather than cast this spell from your hand,...)"
To expand a mechanic's name but not its reminder text, include parentheses at the end of the square brackets: "[Crittercast()]", "[Delay 9 {R}()]".
