Walking Ballista enters the battlefield with X +1/+1 counters
Summary The release of the Deadpool Secret Lair has enabled a new strategy in Magic: The Gathering
Once per turn: You can detach 1 material from this card, then target 1 monster on the field, with ATK less than or equal to the combined ATK of all "Ghostrick" monsters on the field
But that's not why it's weird
The real ability here though, is At the beginning of combat on your turn, up to one target land you control becomes an X/X Elemental creature with trample and haste until end of turn, where X is Obuuns power
These categories are: Normal, Effect, Non-Effect, Ritual, Fusion, Synchro, Xyz, Pendulum, Link, and sometimes Trap Monster