It just hit me. The ultimate deck.
Centered round Ageless Entity, that gets tougher everytime I gain life, and Arcbound Overseer that gets tougher as I play artifacts.
I have about 8 Arcbound artifact creature cards in this deck, and they all come into play with 3 +1/+1 counters on them.
Now consider this:
Arcbound Overseer, 1 +1/+1 counter on it. Then I play my Ageless Entity (4/4) and Arctic Nishoba. (5/6, cumulative upkeep W or G. When Artic Nishoba is sent to a graveyard from play, you gain life equal to thenumber of age counters on it.)
Next, I pump out the rest of my Arcbounds, bringing my Overseer up to a tasty 9/9. And when the rest of my Arcbounds die, then I pile more counters onto the Overseer.
Think about it. I had 8 arcbounds, with three +1/+1 tokens.
So my Overseer has gone from being a 1/1 weakling to a 33/33 beast.
And that's not all.
I slap him with a Spirit Link, and suddenly whenever he deals damage, I gain that much life. And whenever I gain life, Ageless Entity gets +1/+1! So say my opponent has his prized 6/6 in play, and he blocks my Overseer. Not only do I gain 6 life, but Ageless Entity gets beefed up to 10/10!
Lets say that by this point, I decide to sacrifice Artic Nishoba. Because I usually do this after paying his upkeep cost 6 times, I would gain 12 life, and Ageless Entity becomes a 22/22 megahulk.
And all those singles will cost me less than £15.