Krenko makes things infinite

[Spencer Addington]

{Umbral mantel}+{krenko, mob boss}+{mana echoes}
Wait until you have 3 goblins on the field, then equip krenko with unbural mantel then tap him for tokens, get 3 mana from mana echoes, use the three mana to untap krenko and repeat the process. It's actually a really fun combo.

[Spencer Addington]

It makes infinite goblins and colorless mana btw.

[Qpwner]

 {Ashnod's Altar} would do the same thing as mana echos

[Spencer Addington]

{Ashnod's Altar} would do the same thing as mana echos

Oh yes.. This is going to be very fun

[Birdbrain]

Or you could try

{krenko, mob moss} + {intruder alarm}

[Brawler_1337]

Or you could try

{krenko, mob moss} + {intruder alarm}

But that doesn't work in Krenko EDH.