The big doodle.
AC02-JP033 Rakugakijuu – Tyranno / Doodle Beast – Tyranno
You can Tribute Summon this card by Tributing 1 Dinosaur monster. You can only use the 1st effect of this card’s name once per turn.
(1) During the Main Phase, if there is a Dinosaur monster on the field, you can (Quick Effect): Immediately after this effect resolves, Tribute Summon this card from your hand.
(2) If this card is Normal Summoned: You can destroy 1 monster on the field, then, if this card was Tribute Summoned by Tributing a “Doodle Beast” monster, it gains ATK equal to half the ATK the destroyed monster had on the field.