Sure, jump-starting this requires discarding a card, but you should have an extra land at that point in the game
Rampaging Growth Rampaging Growth can play like Deathsprout if you use it before blockers, but it can also be a horrible do-nothing if your opponent has a kill spell for the land you search up
It even costs five, two of which are colored mana, so I guess we're setting ourselves up to one day deliver white and blue cones of something
Theres not a lot of cards with activated abilities which cost six or more (and thus benefit from both Zirda and Dynaheirs effects simultaneously), but there ARE plenty of X-cost activated abilities which will do the job fine
If the attacking creature has trample, it must first assign lethal damage to the blocking creature, but then any excess damage may be assigned to that battle
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