Legality depends on the tournament format -- Constellation Card can be legal in some formats and banned or restricted in others
Its also illustrated by Atsuko Nishida, the creator of Pikachu
$34.99 Familiar Ground 7th Edition $0.49 Tribal Golem Onslaught $49.99 Patron of the Orochi Betrayers of Kamigawa $4.99 Unholy Grotto Onslaught $0.79 Seaside Haven Onslaught $329.99 Cabal Coffers Torment $0.69 Dingus Staff Weatherlight $39.99 Ancient Silverback 7th Edition $0.49 Doom Cannon Onslaught $9.99 Patron of the Nezumi Betrayers of Kamigawa $8.99 Cloudpost Mirrodin $1.99 Skyshroud Claim Nemesis 0 results found
It provides you mana to cast Auras or Equipment spells if you need it, or you can use it to move an Aura or Equipment between creatures you control
If you have low mana costs, lots of ramp, rocks and reducers, or don't need to cast your commander several times, you can lower the number of lands in your deck
Him and his support are all pretty cheap