Grand Meeting of the Goblin Bikers
"Goblin" monsters you control gain 300 ATK for each "Goblin" monster you control. During your Main Phase, you can Normal Summon 1 "Goblin" monster, in addition to your Normal Summon/Set. (You can only gain this effect once per turn.) You can target 2 "Goblin" monsters you control that have a Level, then activate 1 of these effects;
● The Level of 1 of them becomes the Level of the other.
● The Levels of both monsters become their combined original Levels.
You can only use this effect of "Grand Meeting of the Goblin Bikers" once per turn.