In that light, this guide highlights the best planeswalkers MTG players actually want
With the average CMC being so low Shelldock is rarely saving you mana and often costing you it
If you do, create a token thats a copy of it, except its a 0/2 Thopter artifact creature with flying in addition to its other types
BT1-078 U Digimon Lv.5 Jagamon Color Green Cost 7 DP 7000 Digivolve Cost 1 Green 3 from Lv.4 Form Ultimate Attribute Vaccine Type Vegetation Card Text 1 [Effect] [When Attacking] Reveal 3 cards from the top of your deck
You can copy and paste the following list directly into Pokmon TCG Live
Combine that with Kraum, Ludevic's OpusKraum, Ludevic's Opus for a fast-flying threat in the air that will also draw you more cards, and you get the leaders of Blue Farm, the cEDH deck that has ruled the meta for several years now