Ohh... so, the option to explore passive/active ability combos is open?
Before I go into hiatus and come out to bounce 34,654 thousand random ideas off the E community, are coming up with new active and passive skills fair game? Ex- "Link: (activate) Every time creature successfully deals damage to a player, that damage, rounded down, is applied to linked creature." In other words, have a creature with "Link" target a creature on the field, then apply damage as described until it is dead. Then the player controling the creature with "Link" can target another creature, but not until the link is broken with the previous creature (i.e.- dead or removed from play).
Stuff like that is what I'd explore, then maybe come up with other skils that would mesh on one creature. Using the above example, a creature with Link (active) and Vampirism (passive) could go on the same creature. Am I getting this right as far as passive/active?