You do not have to put a +1/+1 counter on a creature you control, something that can be useful in formats such as Two-Headed Giant, or as a political play in Commander
Creature - Illusion Color tag templates(None) Ebondeath, Dracolich Flash Flying Ebondeath enters tapped
Have all 3 of each (3x Pika, 3x Drednaw, 3x Alcremie, 1x of each power level)
However, with Gengar EX, the player can disable any Supporter cards that the opponent wants to use, which can be a great strategy for decks that rely heavily on them
OP-16, for example, has SEC Character cards of Ace and Blackbeard (OP16-118, OP16-119) that are distinct from their standard Leader cards (OP16-001, OP16-080)
Thats a 2-mana way to enable 5-color domain at instant speed