The Explorer is only a few lands each trigger, but you can blink, bounce, or reanimate him, and in the late game he picks up an equipment like any other creature
Alternatively, if three Merfolk are tapped, you can draw a card
This might be the best convoke commander since you can cast spells for little to no mana, then flicker Aang and Katara to build an even bigger board to convoke bigger spells
You may choose new targets for the copies) . The idea is to cast a lot of cheap cards that draw you cards, like [[Opt]] or as mana like [[Desperate Ritual]]
It could also represent a growth in the format with people playing with what cards they have available, either from other formats (e.g., standard) or from picking up the precons and getting into magic altogether