Even if you arent building around dinosaurs specifically, there are plenty of cheap creatures with high powers, like Atarka Efreet, which become harder to kill thanks to Zilortha, Strength Incarnate
You could see if the card continues to increase in price but, if you have some Mox Opals collecting dust in your binder, you may want to consider selling them while the prices are high.
(See the first point for more on this.) This means that not only are you not always going to hit anything good, when you do it might not even matter
Ral, Crackling Wit (BLB) $12.32 Ral, Crackling Wit, otherwise known as Otter Ral, is Bloomburrow s only main-set planeswalker
Again, be ready to network and negotiate in person for the best possible deal directly with the end buyer