Dragons are not cheap cards to cast, so if your opponent is playing a deck that can flood the battlefield very quickly (such as a Goblin or Elf deck), you'll likely be the first target
Thematically though, making a creature bigger is very green and "can't block" actually makes perfect sense in the green philosophy
Steel cards are also aimed at the combative style of play, as these Glimmers have higher Strength and Willpower stats
2 Peace Offering Turn Group Hug Into Group Pain Group hug decks can be a bit of a slog at times, as they sometimes lack a concise win condition that will take you to the end game
First up, The Mighty Thor, Jane Foster lets you flicker a nontoken artifact or creature, then return it to play tapped, when she attacks