Whenever this artifact or another artifact you control enters, up to one target creature you control gets +1/+0 and gains haste until end of turn. Then transform this artifact if you control four or more artifacts.
"A little innovation can lead to a big score." —Admiral Beckett Brass
Illustrated by Olena Richards · The Lost Caverns of Ixalan · #146
2023-11-10
The value of X for Geode Grotto's last ability is determined only as it resolves. Once that happens, the value of X won't change later in the turn even if the number of artifacts you control changes.