Reynoutria japonica
Abroad it is a relentless soft-bodied attacker and a strong coin earner; at home it is a low-armor buffer.
Japanese Knotweed is a perennial herb, and it plays as a Perennial herb card. It is native to East Asia, where it fights as a buffer, and invasive in Europe, Eastern North America and Western North America, where it takes the attacker role.
None of its moves carries an initiative rider, so it never seizes first strike or an extra turn — its turn order is set by its tempo (see Stats).
Read off the card's actual trait schedule, it keeps these always-on traits, arriving at the levels shown:
It carries no certain trait keywords beyond the schedule above. It is not Moss Pole-eligible (it is not a climber). A Calcium/Magnesium amendment is the most useful slot for its soft body; a Cloche shields an attacker from contact poison.
Read at level 40, where every move is unlocked: DEF 4, retreat 19 Sun. Its tempo splits the usual way — initiative 23 orders turn 1 and SPD 61 orders turn 2 onward — and it is slower off the mark but steadier afterward — it cruises faster than it opens.
Its two nativity roles read differently. Native, it is a buffer: HP 121 (a +15% cushion baked in) and a benched HP overshield for your active, with ATK 22. Invasive, it is an attacker: HP 106 and ATK 35 — the higher figure is the introduced-range term the engine adds for a spreading invader, showing as the card matures. The invasive form pays "Faustian" self-damage to its own bench on every damaging attack (10 + level - 1, growing as it levels) and concedes 2 prizes when knocked out.
Maturity swells its HP toward 233, but its soft category keeps DEF at only 8 — it never becomes a wall. Retreat rises to 41 Sun and its inverted tempo bottoms out; it ends soft but bulky, and a strong attacker still punches through it.
Japanese Knotweed is in the Competitor group on the succession wheel. It deals x1.5 to the Ruderal group (annual forbs, grasses, aquatics, bulbs) and takes x1.5 from Specialists (succulents, conifers, ferns, epiphytes), against which its own damage is resisted to x0.667.
Abroad it is a relentless soft-bodied attacker and a strong coin earner; at home it is a low-armor buffer. Its bitter chemistry withers attackers and its taproot shrugs off Bind, but it needs a sturdier ally on the bench. It is edible (leaf), so feeding it Nitrogen pays x1.25 coins; any other nutrient banks x1.25 XP instead. The Total power gallery below marks its crossover — the level where its rising bulk overtakes its falling speed — at level 27 at home and 28 abroad; either way it only grows stronger with level, so there is never a reason to under-level it.
Leveling trades speed for power. A plant’s tempo (SPD + INI, the turn-order edge) fades as it grows, while its power (HP + ATK + DEF, net of the rising Sun cost to retreat) climbs. The crossover is the level where power overtakes tempo: below it the plant is a fast skirmisher, above it a heavyweight. Shown for each stance this plant can actually hold — native adds a HP cushion, invasive an attack edge, neutral neither — with the card at its crossover and fully grown at Lv 100.