pokemon gold radio card Goldenrod City Tower - Heart and Soul Silver Guide Radio | Pokémon Wiki |

What this means in practice is that if youre purely attacking, its much the same as any untap effect

This began with Collective Unconscious before Modern

Any opponent with more than thirteen creatures will be able to shrug off this otherwise potent effect

If Improvised Arsenal leaves the battlefield before its second ability resolves, the token will still enter as a copy of Improvised Arsenal, using Improvised Arsenal's copiable values from when it was last on the battlefield

The Aether Heart only has one printing from Aether Revolt, which means that any increase in interest that this card experiences will have a magnified effect on the cards overall price