Bear Cub [Mystery Booster] Elemental? Whenever one or more +1/+1

Whenever one or more +1/+1 counters are put on Growth-Chamber Guardian

Remove a time counter from a permanent you control or suspended card you own: Rift Elemental gets +2/+0 until end of turn

It requires immense pressure to imbue an item with magic

Set: Prophecy Type: Instant Rarity: Common Cost: {1}{W} Creatures you control get +0/+1 until end of turn

It's not known whether the Thran built the device to forge their wonders or to defend them

Bear Cub [Mystery Booster] Elemental? Whenever one or more +1/+1Set: Mystery Booster Type: Creature Bear Rarity: Common Cost: {1}{G} Every little cub has its mother's teeth to guard it. Elvish saying