This has a powerful combat damage to a player trigger, and because it has death touch your opponent will be put in a difficult position with it sometimes
While trample is an offensive buff, lifelink and ward fit perfectly with Yunas White Mage toolkit from Final Fantasy 10 (summoners are often depicted as the partys white mage), almost like shes casting Cure and Shell by default
If I had to give it a constructive negative, its that group slug isnt exactly everyones favorite archetype to play against and might be off-putting for new players
While a lot more efficient than Sprout Swarm it is more easily disrupted and needs more tools to be able to get out of control as Swarm can on a bloated stagnant board
This pick is based purely on playstyle: I know pretty much nothing about Doctor Who, and I even pronounced Dalek wrong in my tier list video (I said day-lick, oops)
The Legend of Roku is already a handy card advantage saga, and when you get to the backside Avatar Roku you'll be ready to create lots of dragons