Best card in rarity

[Mikefrompluto]

^ nice to see my man {vampire nighthawk} get some props.

[xStrayKnightx]

Common: {Cloudshift} Helped me out so many times...
Uncommon: {Bitterheart Witch}
Rare: {Witchbane Orb}
Mythic Rare: {Angel of Serenity}

[Langku]

Standard, huh? I play mostly modern and I'm dabbling in commander but if I had to pick it'd be:

{druid's deliverance} a niche card, but effective
{oblivion ring} my answer to everything
{breeding pool} mmmmm. Land
{Tamiyo, the Moon Sage} just plain nifty