Something we haven't done yet...

[Jarrk]

That eco ability is great, but will need balancing as it is placed on cards and tested since it is a variable mechanic.

Examples:
Dream share{U}{U}
Sorcery
Draw 2 cards
Diverence 1- Each player may pay {1} to copy this spell but replace each instance of a number with 1

Meaning you can pay 3 total to draw 3 but they can pay 1 to draw 1.

Resounding summons {B}{B}
Sorcery
Put 2 2/2 black zombie creature tokens into play.
Divergence 2- each player may pay {2} to copy this spell but replace each instance of a number with 2.

Thats a really cool idea but make it so the spell can only be copied once for each player idk maybe just certain spells. You should suggest that ability "Divergence" for the new land/enchantment in the "You make the card4" or suggest it to WotC card designers i would love to play with that mechanic maybe in the new expansion after M14 has come out, good luck. Think of the extort capabilities with a Crypt Ghast on the board xD

[Kaleo42]

They way it is worded is only once per player. It's similar to miracle in it's rules interpretation.

[FlickerYourOwnIdentity]

We need more progress mechanic, so let your brains start processing people!  If you wanna get to the fun part, card making, and I know.  EVERYONE WANTS TO MAKE THE PLANESWALKER, but we have to finish this stuff first.  So I'll see what this one looks like.

Invest # - whenever you play # <card type>(s) in one turn, draw # card(s)

Example:

{U}{U}{2}           Lab Professer

Creature - Human

Invest 2 - Whenever you play 2 artifacts in 1 turn, draw 2 cards.

1/2

_____________________________________

Thoughts?  I'm flexible with suggestions on this one.  If I get enough positive feedback, I'll put it as a mech candidate.

[Kaleo42]

Needs more continuity. To many veriables for one mechanic. Good idea to start with though.

[Dudecore]

Retention - You may reveal this card before your discard step. If you do not, discard it. Cards with retention do not count toward your maximum hand size.

[FlickerYourOwnIdentity]

Retention - You may reveal this card before your discard step. If you do not, discard it. Cards with retention do not count toward your maximum hand size.

There's a legendary that could go good with that... *cough* Jin gitaxis *cough*

[Dudecore]

Channel - Whenever you recieve combat damage from an opponent, you may exile cards from the top of your library equal to the amount of combat damage recieved. For each instant or sorcery card with converted mana cost equal to combat damage recieved or less among them, you may cast 1 such card without paying its mana cost. Then put all cards exiled this way that weren't cast into your graveyard.

[Ageniv]

Channel - Whenever you recieve combat damage from an opponent, you may exile cards from the top of your library equal to the amount of combat damage recieved. For each instant or sorcery card with converted mana cost equal to combat damage recieved or less among them, you may cast 1 such card without paying its mana cost. Then put all cards exiled this way that weren't cast into your graveyard.

Cool but far to complicated

[FlickerYourOwnIdentity]

Channel - Whenever you recieve combat damage from an opponent, you may exile cards from the top of your library equal to the amount of combat damage recieved. You may cast 1 instant or sorcery card with converted mana cost equal to combat damage recieved or less among them, you may cast that card without paying its mana cost. Then put all cards exiled this way that weren't cast into your graveyard.

Retention I thought was better, this with {elixir of immortality} will practically shut a aggro deck down.  But Ruric will still screw with you playin this mech....

[Dudecore]

Channel - Whenever you recieve combat damage from an opponent, you may exile cards from the top of your library equal to the amount of combat damage recieved. For each instant or sorcery card with converted mana cost equal to combat damage recieved or less among them, you may cast 1 such card without paying its mana cost. Then put all cards exiled this way that weren't cast into your graveyard.

Cool but far to complicated

It's {Epic Experiment} with combat damage instead of X. It is pseudo balanced because you are taking damage and getting a tiny advantage of playing 1 spell for free. Aggro would still be afloat. There are a billion cards that can break all these mechanics.

How about:
Refusal - If this card would be exiled, reveal it and shuffle it back into it's owners library. Draw a card.

[FlickerYourOwnIdentity]

Lol {gloom surgeon} price spike!

^
Please realize when I say stuff like that, it doesn't mean i dont like it.  I liked the first two.

This one however I don't.

Please don't think I'm negative when I say this but refusal, is just bad without flashback, and Mr. Surgeon.  It's just a bad mechanic. 

But I loved the first 2!

[Dudecore]

Thwart - Whenever <CARDNAME> is blocking another attacking creature, you may put a -1/-1 counter on <CARDNAME>. If you do remove that attacking creature from combat.

[FlickerYourOwnIdentity]

Thwart - Whenever <CARDNAME> is blocking another attacking creature, you may put a -1/-1 counter on <CARDNAME>. If you do remove that attacking creature from combat.

It's cool, and out there.  I could see that on some black defenders.  Could even put that in a few traps.  By the way TRAPS MIGHT COME BACK!!!!  Read storyline 1 from me to understand.

[Dudecore]

Study - At the beginning of your upkeep, any opponent may discard a card. If a player does, tap [NAME] and exile a card face down, you may put that card into your hand at the beginning of your next upkeep.

[FlickerYourOwnIdentity]

Study - At the beginning of your upkeep, any opponent may discard a card. If a player does, tap [NAME] and exile a card face down, you may put that card into your hand at the beginning of your next upkeep.

Exile a card from where.