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I managed to scrape some free time today, and did these:

And I did Spybot too, but it was a bit though. His first ability is my try to adapt cover/counter. Didn´t know how to do it otherwise. The second... the second is there just for fun, actually.

And a question about mechanics: I wanted to get the summons in, because this might be a little short on creatures, but I wanted them to fit the "temporal summon" role. And there should only be one summon at a time under anyone´s control (no one can summon more than one creature at a time... the mystery of this has finally been solved. It´s the bungee thing :)) So I made our own variant of the Fading mechanic.

Summon X ([This] comes into play with X summon counters on it. At the end of your turn, remove a summon counter from [this]. When [this] has no summon counters on it, sacrifice it. When another creature with summon comes into play under your control, remove [this] from the game)

Kinda like fading, but slightly different. Hope this will not cause Wizards of the Coast´s lawyers to eat me. But, anyway, what are your views on this? And as I said a while before, mechanic suggestions are really going to be warmly welcome!