Ravenous Tyrannosaurus (Source Material - Borderless) IMA create four 3/3 blue Serpent

create four 3/3 blue Serpent creature tokens named Koma's Coil

Pay 1 life: Exile the top card of your library

it deals damage equal to the number of time counters on it to any target

You may cast Dragon spells without paying their mana costs

you may pay {5}{R}{R}

Ravenous Tyrannosaurus (Source Material - Borderless) IMA create four 3/3 blue SerpentDevour 3 (As this creature enters, you may sacrifice any number of creatures. It enters with three times that many +1 +1 counters on it.) Whenever this creature attacks, it deals damage equal to its power to up to one other target creature. Excess damage is dealt to that creature's controller instead.