Thankfully, it's a "may", so you don't have to
Remember, regardless of type, only one Energy card can be attached per turn unless another card lets you attach more
If Gaddock Teeg is your commander, you want to summon him early and keep him around, and you want to build your deck around being deprived of expensive spells
Quandrix Command 1 graveyard hate

Mill Raging goblins by ManaMan Rakdos Goblins Rakdos Midrange BR Simic Artifacts BO1 by AshLizzlle slivers UW Theros pro tour 2 Theros pro tour 3 Theros pro tour 4 Theros pro tour 7 commander precon comm (not owned) Blight curse Built from scratch 2014 C2013 - Evasive Maneuvers C2013 - nature of the beast C2014 - Guided by Nature C2016 - Entropic Uprising C2017 - Arcane Wizardry C2017 - Feline Ferocity C2018 - Adaptive Enchantment C2018 - Exquisite Invention C2023 - CM Eldrazi Unbound C2023 - CM Enduring Enchantments C2023 - CM Planeswalker party C2023 - CM Sliver swarm C2023 - LCoI Ahoy Mateys C2023 - LCoI Explorers of the deep C2023 - LCoI Veloci-Ramp-Tor Airbending on a budget BR Goblins 2021 By Sandy02 Grixis reanimator Imotei, bouncing budget Mono green elves in cars commander Ninjas Peregrin took a picknick Tinybones stealing your cards Urza poly kraken Vampires commander In opbouw / ideetjes Hakbal merfolk Smaug | dragon treasure SOS Quandrix Temp Latulla 's Boros mobilize by Ashlizzle Type: Deck Idea Format (legal ) Format (legal ) staStandard Approx

As a huge Enrage fanboy though, I gotta switch to Wayta, Trainer Prodigy here: Wayta is EXACTLY what I wanted in an Enrage Dinosaur leader and I think she's quite powerful to boot