On the other hand, there is a relatively long list of Rares that saw play in Shards of Alara Standard including: Knight of the White Orchid, Noble Hierarch, Knight of the Reliquary, Scute Mob, Martial Coup, Broodmate Dragon, Maelstrom Pulse, Sovereigns of the Lost Alara, Dauntless Escort, Hell's Thunder, Brilliant Ultimatum, Cruel Ultimatum, Sedraxis Specter, and Ad Nauseam
Unlike the paper TCG the only way to get the energy into the Discard Pile is when a Pokmon faints, so if you want to be able to use this early you need to put something out front that your opponent can't afford to ignore
(Of yourself, and your cards.)
Field currently sees play in nearly every format, although its presence in eternal formats has a different character
For example, if you control Rin and Seri, Inseparabler as well as a permanent with "Each Dog you control enters with an additional +1/+1 counter on it" and you create a 1/1 Cat token, that Cat token will be a Dog Cat token and will enter with a +1/+1 counter on it, a woof, and a purr
It's more of a classic than Mind's Eye because you can kill tokens or X/1 dorks to draw, trigger death triggers like Blood Artist and draw all day long
