Just imagine that one guy who has all the old dual lands in his pentacolor deckthen, it's your turn, you untap, draws your cards, look dead into his eyes, smiles, taps 4 mana and cast Ruination you see the fear dominating his expression as he looks through his hand trying to find an answer but as he does...you are ready, because this is not "me smash" dumb monored deck, you cast Red Elemental Blast and RUIN (ba dum tss) his dreams.
We also run Destructive Force,Wildfire take notice that both cards don't actually kill neheb so you dont need to waste your time putting darksteel plate in it or some shit. Then we have Bend or Break, Price of Glory and searing sands. I discovered this card as i was building this deck and it fits so well, any board wipe you play is going to erradicate all of their lands as well, we only have 10 creatures, so we are golden.