Big Evolution Pill
Normal Spell Card
Tribute 1 Dinosaur-Type monster to activate this card. This card remains face-up on the field for 3 of your opponents turns. While this card is face-up on the field, you can Normal Summon or Set Dinosaur-Type monsters without tributing.
This card is perfect in any Dino deck that has more then 3 tributing monsters. All you need is the perfect defense to keep it up on the field for those 3 turns. MST, Dust Tornado whatever destroys spell and trap cards. You might also need a card that prevents monsters from destroying it. All in all, it's a decent card.
I give this card a 4/5 in a good Dino deck.