This is both a useful draw effect and a disruption tool at the same time
they are: Burn, Burn, Tree and Fern The Desolation of Smaug Sting, Bilbo's Sword Supper for Spiders The Lonely Mountain The Eagles Are Coming The Desolation of Smaug feels like a lock for any Dragon tribal decks because its damage targets non-Dragon creatures, and you get four mana back in any color combination to then cast another dragon
Gaia, the Polar Knight Type Effect Monster Attribute DARK Typing Warrior Level/Rank 4 ATK 1600 DEF 1200 Archetype Gaia The Fierce Knight Typings Effect TCG Date 2014-08-14 OCG Date 2013-08-11 Card Text You can only use each effect of "Gaia, the Polar Knight" once per turn
The counter-removing feature isn't often seen, but it could be an efficient way to deal with some annoying targets, such as planeswalkers, or other battles, or removing -1/-1 counters, or resetting your own Sagas
If you were to add in on an Expert Belt, you have a 150 HP Pokmon hitting for 120 damage
I think there was just one kid who had it when I was at school and it had a bit of a mystical aura around it