Grenadin in Eternal can refer to a Unit subtype. However it is also the name of a particular unit. The Grenadin is a weak fighter with base combat skills of 1/1.
How To get Grenadin
Note that there is no specific Grenadin card in the game. This unit is a token - it can only arrive on the battlefield as a result of playing another card. Examples of cards which generate Grenadin tokens include Grenadin Drone, Sparkbot and Scraptank; the Grenadin are associated strongly with the Fire faction.
Even though there are no cards to play them directly, unit tokens still have a power cost - the reason why is that they might be returned from the graveyard to your hand via a card such as Dark Return. In the case of the Grenadin unit its power cost is 1.
This page written for Eternal version 1.22, Card Sets 1 & 2
Last updated: 5-08-2017