Even the last glow is a subtle effect, and although can recruit his deck, the activation timing is limited, and is difficult to use as it is limited to the opponent's field
Sieges generally have an effect when they are cast, and then their owner picks a player to defend them and take control of them
Like Duress
Energy: 25x Psychic Energy 1x Double Colorless Energy Pokemon: 3x Slowpoke (LV 9) 2x Slowbro (LV 26) 4x Drowzee (LV 12) 3x Hypno (LV 36) 2x Mr
Kellan has had adventure abilities in The Lost Caverns of Ixalan and Murders at Karlov Manor , though its hard to say if that means the mechanic is branching out or if this is a way to tie him to his home plane
There are secondary themes that appear sometimes, like caring about artifacts, drawing, discarding, or cycling, and more recently, weve had payoffs for drawing two cards or casting two spells a turn