My money's on Ampharos, since it surely has more fans, but since we're bound to see all 48 of the Mega Evolutions (information courtesy of our 'How many Pokmon are there?' guide) over the course of the Mega Evolution series, perhaps the Pokmon Company will want to space them out
If you opponent is able to use their mana for things you don't want to or can't Counterspell and just sit on the thing you need to counter then you will be getting further and further behind
If paired with green, black will sacrifice creatures primarily, but with red, artifacts can be melted down to deal damage or retrieve other artifacts from the graveyard
Second point is, the card draws only 1 card and forces you to make a play out of the remaining 2 cards
The card slinger is now available for purchase for those who cant print their own
What is Protection From a Color vs