digimon weregarurumon card Game - NEXT ADVENTURE (BT07) Limited edition BT-23 Hackers Slumber] WereGarurumon :

If a monster(s) is Special Summoned to your opponent's field (except during the Damage Step): You can Special Summon this card

Luminescent orbs hover around the derelict building, contrasting the sizeable gears and machinery sprawled about the ruin

Since the card is currently only being played in just one modern deck, I personally had it in the third spot behind the best blue reactive spells in the format, Counterspell and Force of Negation, but I can see the number one spot going to the best and most efficient threat the color has to offer

To take advantage of this explosive potential you want to play this build as a combo deck with winning with creatures attacking as a backup plan