pokemon card magneton (38/108) [XY: Evolutions] PSA 7 NM - Magneton

Teferi, Time Raveler is the same way, as his passive power prevents players from casting instant-speed spells the moment he touches the table, preventing counterplay at a very early turn: as early as turn two if you can get some quick one-cost mana ramp out turn one

You can also go down the pod or toolbox route, finding permanents with powerful enter the battlefield abilities for any situation, whether its Eternal Witness, Noxious Gearhulk or Aether Channeler to name but three

The best way to do this is to check online forums and see what people are talking about

~ Finally, The folks over at MTG Mint Card is having another great give-away contest on their FaceBook page