Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) As Obelisk of Urd enters the battlefield, choose a creature type. Creatures you control of the chosen type get +2/+2.
![Obelisk of Urd [Zendikar Rising Commander]](http://www.cardmerchanttakapuna.co.nz/cdn/shop/products/b80c611d-fcac-5e6c-97af-33374d4f76c4_5b4ac33a-e874-4d1f-811c-551831149ad8.jpg?v=1698561033&width=1445)