Flaming Dragons and Beaty Beasties

Grapplemaw
4
5/4
Creature - Beast
Tapped creatures may block Grapplemaw as though they were untapped.
:Target tapped creature blocks Grapplemaw this turn if able.

Seethescale Magmadon
4
5/5
Creature - Dragon
Flying, Haste
: Seethescale Magmadon gets +1/+0 until end of turn.
1 : Put a +1/+0 counter on Seethescale Magmadon.

Winged Inferno
7
9/4
Creature - Elemental Dragon
Flying
1 , : Winged Inferno deals 3 damage to target creature and each creature with the same name as that creature.
, Sacrifice Winged Inferno: Winged Inferno deals 3 damage to each creature.

Realmscour Baloth
9
12/12
Creature - Dragon Beast
: Realmscour Baloth gets +1/+0 until end of turn.
2 : Destroy target noncreature permanent.
: Destroy all colorless permanents.

Scythefang
1
2/2
Creature - Vampire Beast
Deathtouch
Whenever a creature dealt damage by Scythefang leaves play, put a +1/+1 counter on Scythefang.

Frostfire Dragon
1
4/4
Snow Creature - Dragon
Flying, Shroud
Frostfire Dragon comes into play tapped and doesn't untap during its controller's untap step.
Whenever a creature loses an ability, untap Frostfire Dragon.
Whenever a creature gains an ability, put a +1/+1 counter on Frostfire Dragon.

Gyris, The Searing Wing
3
4/4
Legendary Creature - Hydra Dragon
Flying
Whenever Gyris, The Searing Wing is dealt damage, put that many +1/+1 counters on it.
Remove a +1/+1 counter from Gyris, The Searing Wing: Creatures you control have haste this turn.
Remove five +1/+1 counters from Gyris, The Searing Wing: Creatures you control have trample this turn.
Remove ten +1/+1 counters from Gyris, The Searing Wing: Creatures you control have double strike this turn.

Qagur, the Shattered Earth
4
7/7
Legendary Creature - Avatar Beast
Trample
If Qagur, the Shattered Earth would deal damage to a player, instead that player sacrifices that many nontoken permanents.

Spinestomper
5
5/4
Creature - Beast
1: Destroy target creature with power 0 or less.
: Destrot target creature with power 1 or less.

Furblast Dragon
2
5/3
Creature - Dragon
Flying
When Furblast Dragon comes into play, destroy all Squirrels.

Avatar of The Worldly Flame

10/10
Creature - Dragon Avatar
Flying, Haste
Damage that is dealt to opponents and permanents your opponents control can't be prevented.
If a source would deal damage to you or a permanent you control, prevent that damage.